23 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/template-dimens.xml:
--------------------------------------------------------------------------------
1 |
16 |
17 |
18 |
19 |
20 |
21 | 4dp
22 | 8dp
23 | 16dp
24 | 32dp
25 | 64dp
26 |
27 |
28 |
29 | @dimen/margin_medium
30 | @dimen/margin_medium
31 |
32 |
33 |
--------------------------------------------------------------------------------
/Application/src/main/java/com/example/android/autobackupsample/Utils.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2015 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.example.android.autobackupsample;
18 |
19 | import android.os.Environment;
20 | import android.util.Log;
21 |
22 | /**
23 | * Utility methods for the app.
24 | */
25 | public class Utils {
26 |
27 | private static final String TAG = "AutoBackupSample";
28 |
29 | public static boolean isExternalStorageAvailable() {
30 | String state = Environment.getExternalStorageState();
31 | if (!Environment.MEDIA_MOUNTED.equals(state)) {
32 | Log.d(TAG, "The external storage is not available.");
33 | return false;
34 | }
35 | return true;
36 | }
37 | }
38 |
--------------------------------------------------------------------------------
/Application/src/main/res/layout/file_list_item.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
21 |
22 |
26 |
27 |
31 |
32 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/base-strings.xml:
--------------------------------------------------------------------------------
1 |
2 |
17 |
18 |
19 | Automatic Backup
20 |
21 |
34 |
35 |
36 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/template-styles.xml:
--------------------------------------------------------------------------------
1 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
34 |
35 |
41 |
42 |
43 |
--------------------------------------------------------------------------------
/Application/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
18 |
19 |
25 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
37 |
38 |
--------------------------------------------------------------------------------
/Application/build.gradle:
--------------------------------------------------------------------------------
1 |
2 | buildscript {
3 | repositories {
4 | jcenter()
5 | google()
6 | }
7 |
8 | dependencies {
9 | classpath 'com.android.tools.build:gradle:3.0.1'
10 | }
11 | }
12 |
13 | apply plugin: 'com.android.application'
14 |
15 | repositories {
16 | jcenter()
17 | google()
18 | }
19 |
20 | dependencies {
21 | compile "com.android.support:support-v4:27.0.2"
22 | compile "com.android.support:support-v13:27.0.2"
23 | compile "com.android.support:cardview-v7:27.0.2"
24 | compile "com.android.support:appcompat-v7:27.0.2"
25 | }
26 |
27 | // The sample build uses multiple directories to
28 | // keep boilerplate and common code separate from
29 | // the main sample code.
30 | List dirs = [
31 | 'main', // main sample code; look here for the interesting stuff.
32 | 'common', // components that are reused by multiple samples
33 | 'template'] // boilerplate code that is generated by the sample template process
34 |
35 | android {
36 | compileSdkVersion 27
37 |
38 | buildToolsVersion "27.0.2"
39 |
40 | defaultConfig {
41 | minSdkVersion 23
42 | targetSdkVersion 27
43 | }
44 |
45 | compileOptions {
46 | sourceCompatibility JavaVersion.VERSION_1_7
47 | targetCompatibility JavaVersion.VERSION_1_7
48 | }
49 |
50 | sourceSets {
51 | main {
52 | dirs.each { dir ->
53 | java.srcDirs "src/${dir}/java"
54 | res.srcDirs "src/${dir}/res"
55 | }
56 | }
57 | androidTest.setRoot('tests')
58 | androidTest.java.srcDirs = ['tests/src']
59 |
60 | }
61 |
62 | }
63 |
--------------------------------------------------------------------------------
/CONTRIBUTING.md:
--------------------------------------------------------------------------------
1 | # How to become a contributor and submit your own code
2 |
3 | ## Contributor License Agreements
4 |
5 | We'd love to accept your sample apps and patches! Before we can take them, we
6 | have to jump a couple of legal hurdles.
7 |
8 | Please fill out either the individual or corporate Contributor License Agreement (CLA).
9 |
10 | * If you are an individual writing original source code and you're sure you
11 | own the intellectual property, then you'll need to sign an [individual CLA]
12 | (https://cla.developers.google.com).
13 | * If you work for a company that wants to allow you to contribute your work,
14 | then you'll need to sign a [corporate CLA]
15 | (https://cla.developers.google.com).
16 |
17 | Follow either of the two links above to access the appropriate CLA and
18 | instructions for how to sign and return it. Once we receive it, we'll be able to
19 | accept your pull requests.
20 |
21 | ## Contributing A Patch
22 |
23 | 1. Submit an issue describing your proposed change to the repo in question.
24 | 1. The repo owner will respond to your issue promptly.
25 | 1. If your proposed change is accepted, and you haven't already done so, sign a
26 | Contributor License Agreement (see details above).
27 | 1. Fork the desired repo, develop and test your code changes.
28 | 1. Ensure that your code adheres to the existing style in the sample to which
29 | you are contributing. Refer to the
30 | [Android Code Style Guide]
31 | (https://source.android.com/source/code-style.html) for the
32 | recommended coding standards for this organization.
33 | 1. Ensure that your code has an appropriate set of unit tests which all pass.
34 | 1. Submit a pull request.
35 |
36 |
--------------------------------------------------------------------------------
/Application/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
17 | Add File
18 | Settings
19 | App Data:
20 | Please specify a different name. A file with this name exists already.
21 | Please click on Add File menu in order to create test files.
22 | Please specify a correct file size.
23 | The External storage is not available.
24 |
25 | Bytes
26 | Kilobytes
27 | Megabytes
28 |
29 |
30 | Internal
31 | External
32 | Do not Backup
33 |
34 |
35 |
--------------------------------------------------------------------------------
/Application/src/main/res/xml/backup.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
17 |
19 |
20 |
21 |
22 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
36 |
37 |
--------------------------------------------------------------------------------
/Application/src/main/res/layout/fragment_main.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
24 |
25 |
30 |
31 |
37 |
43 |
44 |
45 |
46 |
47 |
50 |
51 |
56 |
57 |
58 |
--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
--------------------------------------------------------------------------------
/Application/src/main/res/layout/add_file.xml:
--------------------------------------------------------------------------------
1 |
2 |
16 |
20 |
21 |
25 |
26 |
27 |
37 |
38 |
46 |
47 |
48 |
57 |
58 |
67 |
68 |
77 |
78 |
79 |
90 |
91 |
98 |
99 |
110 |
111 |
112 |
113 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # For Cygwin, ensure paths are in UNIX format before anything is touched.
46 | if $cygwin ; then
47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
48 | fi
49 |
50 | # Attempt to set APP_HOME
51 | # Resolve links: $0 may be a link
52 | PRG="$0"
53 | # Need this for relative symlinks.
54 | while [ -h "$PRG" ] ; do
55 | ls=`ls -ld "$PRG"`
56 | link=`expr "$ls" : '.*-> \(.*\)$'`
57 | if expr "$link" : '/.*' > /dev/null; then
58 | PRG="$link"
59 | else
60 | PRG=`dirname "$PRG"`"/$link"
61 | fi
62 | done
63 | SAVED="`pwd`"
64 | cd "`dirname \"$PRG\"`/" >&-
65 | APP_HOME="`pwd -P`"
66 | cd "$SAVED" >&-
67 |
68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
69 |
70 | # Determine the Java command to use to start the JVM.
71 | if [ -n "$JAVA_HOME" ] ; then
72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
73 | # IBM's JDK on AIX uses strange locations for the executables
74 | JAVACMD="$JAVA_HOME/jre/sh/java"
75 | else
76 | JAVACMD="$JAVA_HOME/bin/java"
77 | fi
78 | if [ ! -x "$JAVACMD" ] ; then
79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
80 |
81 | Please set the JAVA_HOME variable in your environment to match the
82 | location of your Java installation."
83 | fi
84 | else
85 | JAVACMD="java"
86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
87 |
88 | Please set the JAVA_HOME variable in your environment to match the
89 | location of your Java installation."
90 | fi
91 |
92 | # Increase the maximum file descriptors if we can.
93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
94 | MAX_FD_LIMIT=`ulimit -H -n`
95 | if [ $? -eq 0 ] ; then
96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
97 | MAX_FD="$MAX_FD_LIMIT"
98 | fi
99 | ulimit -n $MAX_FD
100 | if [ $? -ne 0 ] ; then
101 | warn "Could not set maximum file descriptor limit: $MAX_FD"
102 | fi
103 | else
104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
105 | fi
106 | fi
107 |
108 | # For Darwin, add options to specify how the application appears in the dock
109 | if $darwin; then
110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
111 | fi
112 |
113 | # For Cygwin, switch paths to Windows format before running java
114 | if $cygwin ; then
115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
117 |
118 | # We build the pattern for arguments to be converted via cygpath
119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 | SEP=""
121 | for dir in $ROOTDIRSRAW ; do
122 | ROOTDIRS="$ROOTDIRS$SEP$dir"
123 | SEP="|"
124 | done
125 | OURCYGPATTERN="(^($ROOTDIRS))"
126 | # Add a user-defined pattern to the cygpath arguments
127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 | fi
130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 | i=0
132 | for arg in "$@" ; do
133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
135 |
136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 | else
139 | eval `echo args$i`="\"$arg\""
140 | fi
141 | i=$((i+1))
142 | done
143 | case $i in
144 | (0) set -- ;;
145 | (1) set -- "$args0" ;;
146 | (2) set -- "$args0" "$args1" ;;
147 | (3) set -- "$args0" "$args1" "$args2" ;;
148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 | esac
155 | fi
156 |
157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
158 | function splitJvmOpts() {
159 | JVM_OPTS=("$@")
160 | }
161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
163 |
164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
165 |
--------------------------------------------------------------------------------
/Application/src/main/java/com/example/android/autobackupsample/MainActivityFragment.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2015 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.example.android.autobackupsample;
18 |
19 | import android.app.Fragment;
20 | import android.content.Intent;
21 | import android.os.Bundle;
22 | import android.os.Environment;
23 | import android.util.Log;
24 | import android.view.LayoutInflater;
25 | import android.view.Menu;
26 | import android.view.MenuInflater;
27 | import android.view.MenuItem;
28 | import android.view.View;
29 | import android.view.ViewGroup;
30 | import android.widget.ArrayAdapter;
31 | import android.widget.ListView;
32 | import android.widget.TextView;
33 |
34 | import java.io.File;
35 | import java.text.NumberFormat;
36 | import java.util.ArrayList;
37 |
38 |
39 | /**
40 | * A placeholder fragment containing a simple view.
41 | */
42 | public class MainActivityFragment extends Fragment {
43 |
44 | private static final String TAG = "AutoBackupSample";
45 | public static final int ADD_FILE_REQUEST = 1;
46 | public static final int ADD_FILE_RESULT_SUCCESS = 101;
47 | public static final int ADD_FILE_RESULT_ERROR = 102;
48 |
49 | private ArrayAdapter mFilesArrayAdapter;
50 | private ArrayList mFiles;
51 |
52 | public MainActivityFragment() {
53 | }
54 |
55 | @Override
56 | public View onCreateView(LayoutInflater inflater, ViewGroup container,
57 | Bundle savedInstanceState) {
58 | setHasOptionsMenu(true);
59 | return inflater.inflate(R.layout.fragment_main, container, false);
60 | }
61 |
62 | @Override
63 | public void onActivityResult(int requestCode, int resultCode, Intent data) {
64 | super.onActivityResult(requestCode, resultCode, data);
65 |
66 | if (requestCode == ADD_FILE_REQUEST && resultCode == ADD_FILE_RESULT_SUCCESS) {
67 | updateListOfFiles();
68 | }
69 | }
70 |
71 | @Override
72 | public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
73 | // Inflate the menu; this adds items to the action bar if it is present.
74 | inflater.inflate(R.menu.menu_main, menu);
75 | super.onCreateOptionsMenu(menu, inflater);
76 | }
77 |
78 | @Override
79 | public boolean onOptionsItemSelected(MenuItem item) {
80 | // Handle action bar item clicks here. The action bar will
81 | // automatically handle clicks on the Home/Up button, so long
82 | // as you specify a parent activity in AndroidManifest.xml.
83 | int id = item.getItemId();
84 |
85 | //noinspection SimplifiableIfStatement
86 | if (id == R.id.action_settings) {
87 | return true;
88 | } else if (id == R.id.action_add_file) {
89 | Intent addFileIntent = new Intent(getActivity(), AddFileActivity.class);
90 | startActivityForResult(addFileIntent, ADD_FILE_REQUEST);
91 | return true;
92 | }
93 |
94 | return super.onOptionsItemSelected(item);
95 | }
96 |
97 | @Override
98 | public void onResume() {
99 | super.onResume();
100 | if (mFilesArrayAdapter == null) {
101 | mFiles = createListOfFiles();
102 | mFilesArrayAdapter = new ArrayAdapter(getActivity(),
103 | R.layout.file_list_item, mFiles) {
104 |
105 | @Override
106 | public View getView(int position, View convertView, ViewGroup parent) {
107 | LayoutInflater inflater = LayoutInflater.from(getContext());
108 | View itemView = inflater.inflate(R.layout.file_list_item, parent, false);
109 | TextView fileNameView = (TextView) itemView.findViewById(R.id.file_name);
110 | String fileName = getItem(position).getAbsolutePath();
111 | fileNameView.setText(fileName);
112 | TextView fileSize = (TextView) itemView.findViewById(R.id.file_size);
113 | String fileSizeInBytes = NumberFormat.getInstance()
114 | .format(getItem(position).length());
115 | fileSize.setText(fileSizeInBytes);
116 | return itemView;
117 | }
118 | };
119 | updateListOfFiles();
120 | ListView filesListView = (ListView) getView().findViewById(R.id.file_list);
121 | filesListView.setAdapter(mFilesArrayAdapter);
122 | }
123 | }
124 |
125 | private ArrayList createListOfFiles() {
126 | ArrayList listOfFiles = new ArrayList();
127 | addFilesToList(listOfFiles, getActivity().getFilesDir());
128 | if (Utils.isExternalStorageAvailable()) {
129 | addFilesToList(listOfFiles, getActivity().getExternalFilesDir(null));
130 | }
131 | addFilesToList(listOfFiles, getActivity().getNoBackupFilesDir());
132 | return listOfFiles;
133 | }
134 |
135 | private void addFilesToList(ArrayList listOfFiles, File dir) {
136 | File[] files = dir.listFiles();
137 | for (File file: files) {
138 | listOfFiles.add(file);
139 | }
140 | }
141 |
142 | public void updateListOfFiles() {
143 | TextView emptyFileListMessage =
144 | (TextView) getView().findViewById(R.id.empty_file_list_message);
145 | mFiles = createListOfFiles();
146 | if (mFilesArrayAdapter.getCount() > 0) {
147 | mFilesArrayAdapter.clear();
148 | }
149 | for (File file: mFiles) {
150 | mFilesArrayAdapter.add(file);
151 | }
152 | // Display a message instructing to add files if no files found.
153 | if (mFiles.size() == 0) {
154 | emptyFileListMessage.setVisibility(View.VISIBLE);
155 | } else {
156 | emptyFileListMessage.setVisibility(View.GONE);
157 | }
158 | }
159 | }
160 |
161 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | Apache License
2 | --------------
3 |
4 | Version 2.0, January 2004
5 | http://www.apache.org/licenses/
6 |
7 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
8 |
9 | 1. Definitions.
10 |
11 | "License" shall mean the terms and conditions for use, reproduction,
12 | and distribution as defined by Sections 1 through 9 of this document.
13 |
14 | "Licensor" shall mean the copyright owner or entity authorized by
15 | the copyright owner that is granting the License.
16 |
17 | "Legal Entity" shall mean the union of the acting entity and all
18 | other entities that control, are controlled by, or are under common
19 | control with that entity. For the purposes of this definition,
20 | "control" means (i) the power, direct or indirect, to cause the
21 | direction or management of such entity, whether by contract or
22 | otherwise, or (ii) ownership of fifty percent (50%) or more of the
23 | outstanding shares, or (iii) beneficial ownership of such entity.
24 |
25 | "You" (or "Your") shall mean an individual or Legal Entity
26 | exercising permissions granted by this License.
27 |
28 | "Source" form shall mean the preferred form for making modifications,
29 | including but not limited to software source code, documentation
30 | source, and configuration files.
31 |
32 | "Object" form shall mean any form resulting from mechanical
33 | transformation or translation of a Source form, including but
34 | not limited to compiled object code, generated documentation,
35 | and conversions to other media types.
36 |
37 | "Work" shall mean the work of authorship, whether in Source or
38 | Object form, made available under the License, as indicated by a
39 | copyright notice that is included in or attached to the work
40 | (an example is provided in the Appendix below).
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/Application/src/main/java/com/example/android/autobackupsample/AddFileActivity.java:
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1 | /*
2 | * Copyright (C) 2015 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.example.android.autobackupsample;
18 |
19 | import android.app.Activity;
20 | import android.content.Context;
21 | import android.os.Bundle;
22 | import android.text.TextUtils;
23 | import android.util.Log;
24 | import android.view.Gravity;
25 | import android.view.View;
26 | import android.widget.AdapterView;
27 | import android.widget.ArrayAdapter;
28 | import android.widget.EditText;
29 | import android.widget.Spinner;
30 | import android.widget.Toast;
31 |
32 | import com.example.android.autobackupsample.MainActivityFragment;
33 |
34 | import java.io.BufferedOutputStream;
35 | import java.io.File;
36 | import java.io.FileOutputStream;
37 |
38 | /**
39 | * The purpose of AddFileActivity activity is to create a data file based on the
40 | * file name and size parameters specified as an Intent external parameters or with the
41 | * activity UI.
42 | *
43 | * The optional intent parameters are
44 | * {@link com.example.android.autobackupsample.AddFileActivity#FILE_NAME} and
45 | * {@link com.example.android.autobackupsample.AddFileActivity#FILE_SIZE_IN_BYTES}.
46 | * {@link com.example.android.autobackupsample.AddFileActivity#FILE_STORAGE}.
47 | *
48 | * The activity will return an
49 | * {@link com.example.android.autobackupsample.MainActivityFragment#ADD_FILE_RESULT_ERROR}
50 | * if intent parameters are specified incorrectly or it will display Toast messages to the user
51 | * if those parameters are specified via the activity UI.
52 | */
53 | public class AddFileActivity extends Activity {
54 |
55 | private static final String TAG = "AutoBackupSample";
56 |
57 | /**
58 | * The intent parameter that specifies a file name. The file name must be unique for the
59 | * application internal directory.
60 | */
61 | public static final String FILE_NAME = "file_name";
62 |
63 | /**
64 | * The intent parameter that specifies a file size in bytes. The size must be a number
65 | * larger or equal to 0.
66 | */
67 | public static final String FILE_SIZE_IN_BYTES = "file_size_in_bytes";
68 |
69 | /**
70 | * The file storage is an optional parameter. It should be one of these:
71 | * "INTERNAL", "EXTERNAL", "DONOTBACKUP". The default option is "INTERNAL".
72 | */
73 | public static final String FILE_STORAGE = "file_storage";
74 |
75 | /**
76 | * A file size multiplier. It is used to calculate the total number of bytes to be added
77 | * to the file.
78 | */
79 | private int mSizeMultiplier = 1;
80 |
81 | /**
82 | * Defines File Storage options.
83 | */
84 | private static enum FileStorage {
85 | INTERNAL,
86 | EXTERNAL,
87 | DONOTBACKUP;
88 | }
89 |
90 | /**
91 | * Contains a selected by a user file storage option.
92 | */
93 | private FileStorage mFileStorage = FileStorage.INTERNAL;
94 |
95 | @Override
96 | public void onCreate(Bundle savedInstanceState) {
97 | super.onCreate(savedInstanceState);
98 | setContentView(R.layout.add_file);
99 | initFileSizeSpinner();
100 | initFileStorageSpinner();
101 | }
102 |
103 | @Override
104 | protected void onResume() {
105 | super.onResume();
106 | // If an intent has extra parameters, create the file and finish the activity.
107 | if (getIntent().hasExtra(FILE_NAME) && getIntent().hasExtra(FILE_SIZE_IN_BYTES)) {
108 | String fileName = getIntent().getStringExtra(FILE_NAME);
109 | String sizeInBytesParamValue = getIntent().getStringExtra(FILE_SIZE_IN_BYTES);
110 | String fileStorageParamValue = FileStorage.INTERNAL.toString();
111 |
112 | if (getIntent().hasExtra(FILE_STORAGE)) {
113 | fileStorageParamValue = getIntent().getStringExtra(FILE_STORAGE);
114 | }
115 |
116 | if (TextUtils.isEmpty(fileName) ||
117 | isFileExists(fileName) ||
118 | !isSizeValid(sizeInBytesParamValue) ||
119 | !isFileStorageParamValid(fileStorageParamValue)) {
120 | setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
121 | finish();
122 | return;
123 | }
124 |
125 | mFileStorage = FileStorage.valueOf(fileStorageParamValue);
126 |
127 | if (mFileStorage == FileStorage.EXTERNAL && !Utils.isExternalStorageAvailable()) {
128 | setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
129 | finish();
130 | return;
131 | }
132 |
133 | createFileWithRandomDataAndFinishActivity(fileName, mFileStorage,
134 | sizeInBytesParamValue);
135 | }
136 | }
137 |
138 | /**
139 | * A handler function for a Create File button click event.
140 | *
141 | * @param view a reference to the Create File button view.
142 | */
143 | public void onCreateFileButtonClick(View view) {
144 | EditText fileNameEditText = (EditText) findViewById(R.id.file_name);
145 | EditText fileSizeEditText = (EditText) findViewById(R.id.file_size);
146 | String fileName = fileNameEditText.getText().toString();
147 | String fileSizeEditTextValue = fileSizeEditText.getText().toString();
148 |
149 | if (TextUtils.isEmpty(fileName) || isFileExists(fileName)) {
150 | Toast toast = Toast.makeText(this, getText(R.string.file_exists), Toast.LENGTH_LONG);
151 | toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
152 | toast.show();
153 | return;
154 | }
155 |
156 | if (!isSizeValid(fileSizeEditTextValue)) {
157 | Toast toast = Toast.makeText(this, getText(R.string.file_size_is_invalid),
158 | Toast.LENGTH_LONG);
159 | toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
160 | toast.show();
161 | return;
162 | }
163 |
164 | long fileSize = Integer.parseInt(fileSizeEditTextValue) * mSizeMultiplier;
165 |
166 | if (mFileStorage == FileStorage.EXTERNAL && !Utils.isExternalStorageAvailable()) {
167 | Toast toast = Toast.makeText(this,
168 | getText(R.string.external_storage_unavailable), Toast.LENGTH_LONG);
169 | toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
170 | toast.show();
171 | return;
172 | }
173 |
174 | createFileWithRandomDataAndFinishActivity(fileName, mFileStorage, String.valueOf(fileSize));
175 | }
176 |
177 | private void initFileSizeSpinner() {
178 | Spinner spinner = (Spinner) findViewById(R.id.file_size_spinner);
179 | final ArrayAdapter adapter =
180 | ArrayAdapter.createFromResource(this, R.array.file_size_array,
181 | android.R.layout.simple_spinner_item);
182 | adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
183 | spinner.setAdapter(adapter);
184 | spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
185 | @Override
186 | public void onItemSelected(AdapterView> parent, View view, int position, long id) {
187 | String sizeMeasure = adapter.getItem(position).toString();
188 | mSizeMultiplier = (int) Math.pow(1024, position);
189 | if (Log.isLoggable(TAG, Log.DEBUG)) {
190 | Log.d(TAG, String.format("Selected: %s, %d", sizeMeasure,
191 | mSizeMultiplier));
192 | }
193 | }
194 |
195 | @Override
196 | public void onNothingSelected(AdapterView> parent) {
197 |
198 | }
199 | });
200 | }
201 |
202 | private void initFileStorageSpinner() {
203 | Spinner spinner = (Spinner) findViewById(R.id.storage_spinner);
204 | final ArrayAdapter adapter =
205 | ArrayAdapter.createFromResource(this, R.array.file_storage_array,
206 | android.R.layout.simple_spinner_item);
207 | adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
208 | spinner.setAdapter(adapter);
209 | spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
210 | @Override
211 | public void onItemSelected(AdapterView> parent, View view, int position, long id) {
212 | mFileStorage = FileStorage.values()[position];
213 | }
214 |
215 | @Override
216 | public void onNothingSelected(AdapterView> parent) {
217 |
218 | }
219 | });
220 | }
221 |
222 | private void createFileWithRandomDataAndFinishActivity(String fileName, FileStorage storage,
223 | String sizeInBytes) {
224 | long size = Long.valueOf(sizeInBytes);
225 | File file = null;
226 | FileOutputStream out = null;
227 | BufferedOutputStream bufOut = null;
228 | try {
229 | switch (storage) {
230 | case INTERNAL:
231 | file = getInternalFile(fileName);
232 | out = openFileOutput(file.getName(), Context.MODE_PRIVATE);
233 | break;
234 | case EXTERNAL:
235 | assert Utils.isExternalStorageAvailable() :
236 | "The external storage is not available";
237 | File externalAppDir = getExternalFilesDir(null);
238 | file = new File(externalAppDir, fileName);
239 | out = new FileOutputStream(file);
240 | break;
241 | case DONOTBACKUP:
242 | file = new File(getNoBackupFilesDir(), fileName);
243 | out = new FileOutputStream(file);
244 | break;
245 | }
246 |
247 | if (file == null || out == null) {
248 | Log.d(TAG, "Unable to create file output stream");
249 | // Returning back to the caller activity.
250 | setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
251 | finish();
252 | return;
253 | }
254 |
255 | bufOut = new BufferedOutputStream(out);
256 | for (int i = 0; i < size; i++) {
257 | byte b = (byte) (255 * Math.random());
258 | bufOut.write(b);
259 | }
260 |
261 | String message = String.format("File created: %s, size: %s bytes",
262 | file.getAbsolutePath(), sizeInBytes);
263 |
264 | Toast toast = Toast.makeText(this, message, Toast.LENGTH_LONG);
265 | toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
266 | toast.show();
267 | Log.d(TAG, message);
268 |
269 | // Returning back to the caller activity.
270 | setResult(MainActivityFragment.ADD_FILE_RESULT_SUCCESS);
271 | finish();
272 | } catch (Exception e) {
273 | Log.e(TAG, e.getMessage(), e);
274 | // Returning back to the caller activity.
275 | setResult(MainActivityFragment.ADD_FILE_RESULT_ERROR);
276 | finish();
277 | } finally {
278 | if (bufOut != null) {
279 | try {
280 | bufOut.close();
281 | } catch (Exception e) {
282 | // Ignore.
283 | }
284 | }
285 | }
286 | }
287 |
288 | private boolean isFileExists(String fileName) {
289 | File file = getInternalFile(fileName);
290 | if (file.exists()) {
291 | if (Log.isLoggable(TAG, Log.DEBUG)) {
292 | Log.d(TAG, "This file exists: " + file.getName());
293 | }
294 | return true;
295 | }
296 | return false;
297 | }
298 |
299 | private boolean isSizeValid(String sizeInBytesParamValue) {
300 | long sizeInBytes = 0;
301 | try {
302 | sizeInBytes = Long.valueOf(sizeInBytesParamValue);
303 | } catch (NumberFormatException e) {
304 | if (Log.isLoggable(TAG, Log.DEBUG)) {
305 | Log.d(TAG, "Invalid file size: " + sizeInBytesParamValue);
306 | }
307 | return false;
308 | }
309 |
310 | // Validate file size value. It should be 0 or a positive number.
311 | if (sizeInBytes < 0) {
312 | if (Log.isLoggable(TAG, Log.DEBUG)) {
313 | Log.d(TAG, "Invalid file size: " + sizeInBytes);
314 | }
315 | return false;
316 | }
317 | return true;
318 | }
319 |
320 | private boolean isFileStorageParamValid(String fileStorage) {
321 | try {
322 | mFileStorage = FileStorage.valueOf(fileStorage);
323 | } catch (IllegalArgumentException e) {
324 | if (Log.isLoggable(TAG, Log.DEBUG)) {
325 | Log.d(TAG, "Invalid file storage: " + fileStorage);
326 | }
327 | return false;
328 | }
329 | return true;
330 | }
331 |
332 | private File getInternalFile(String fileName) {
333 | File internalAppDir = getFilesDir();
334 | return new File(internalAppDir, fileName);
335 | }
336 |
337 | }
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