In API level 11 (Android 3.0/Honeycomb) the recommended conventions for - * app navigation using the back key changed. The back key's behavior is local - * to the current task and does not capture navigation across different tasks. - * Navigating across tasks and easily reaching the previous task is accomplished - * through the "recents" UI, accessible through the software-provided Recents key - * on the navigation or system bar. On devices with the older hardware button configuration - * the recents UI can be accessed with a long press on the Home key.
- * - *When crossing from one task stack to another post-Android 3.0, - * the application should synthesize a back stack/history for the new task so that - * the user may navigate out of the new task and back to the Launcher by repeated - * presses of the back key. Back key presses should not navigate across task stacks.
- * - *startActivities provides a mechanism for constructing a synthetic task stack of - * multiple activities. If the underlying API is not available on the system this method - * will return false.
- * - * @param context Start activities using this activity as the starting context - * @param intents Array of intents defining the activities that will be started. The element - * length-1 will correspond to the top activity on the resulting task stack. - * @return true if the underlying API was available and the call was successful, false otherwise - */ - public static boolean startActivities(Context context, Intent[] intents) { - return startActivities(context, intents, null); - } - - /** - * Start a set of activities as a synthesized task stack, if able. - * - *In API level 11 (Android 3.0/Honeycomb) the recommended conventions for - * app navigation using the back key changed. The back key's behavior is local - * to the current task and does not capture navigation across different tasks. - * Navigating across tasks and easily reaching the previous task is accomplished - * through the "recents" UI, accessible through the software-provided Recents key - * on the navigation or system bar. On devices with the older hardware button configuration - * the recents UI can be accessed with a long press on the Home key.
- * - *When crossing from one task stack to another post-Android 3.0, - * the application should synthesize a back stack/history for the new task so that - * the user may navigate out of the new task and back to the Launcher by repeated - * presses of the back key. Back key presses should not navigate across task stacks.
- * - *startActivities provides a mechanism for constructing a synthetic task stack of - * multiple activities. If the underlying API is not available on the system this method - * will return false.
- * - * @param context Start activities using this activity as the starting context - * @param intents Array of intents defining the activities that will be started. The element - * length-1 will correspond to the top activity on the resulting task stack. - * @param options Additional options for how the Activity should be started. - * See {@link android.content.Context#startActivity(Intent, Bundle) - * @return true if the underlying API was available and the call was successful, false otherwise - */ - public static boolean startActivities(Context context, Intent[] intents, - Bundle options) { - context.startActivities(intents, options); - return true; - } - - /** - * Returns absolute paths to application-specific directories on all - * external storage devices where the application's OBB files (if there are - * any) can be found. Note if the application does not have any OBB files, - * these directories may not exist. - *- * This is like {@link Context#getFilesDir()} in that these files will be - * deleted when the application is uninstalled, however there are some - * important differences: - *
- * External storage devices returned here are considered a permanent part of - * the device, including both emulated external storage and physical media - * slots, such as SD cards in a battery compartment. The returned paths do - * not include transient devices, such as USB flash drives. - *
- * An application may store data on any or all of the returned devices. For - * example, an app may choose to store large files on the device with the - * most available space, as measured by {@link StatFs}. - *
- * Starting in {@link android.os.Build.VERSION_CODES#KITKAT}, no permissions - * are required to write to the returned paths; they're always accessible to - * the calling app. Before then, - * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} is required to - * write. Write access outside of these paths on secondary external storage - * devices is not available. To request external storage access in a - * backwards compatible way, consider using {@code android:maxSdkVersion} - * like this: - * - *
<uses-permission - * android:name="android.permission.WRITE_EXTERNAL_STORAGE" - * android:maxSdkVersion="18" />- *
- * The first path returned is the same as {@link Context#getObbDir()}. - * Returned paths may be {@code null} if a storage device is unavailable. - * - * @see Context#getObbDir() - * @see EnvironmentCompat#getStorageState(File) - */ - public static File[] getObbDirs(Context context) { - return context.getObbDirs(); - } - - /** - * Returns absolute paths to application-specific directories on all - * external storage devices where the application can place persistent files - * it owns. These files are internal to the application, and not typically - * visible to the user as media. - *
- * This is like {@link Context#getFilesDir()} in that these files will be - * deleted when the application is uninstalled, however there are some - * important differences: - *
- * External storage devices returned here are considered a permanent part of - * the device, including both emulated external storage and physical media - * slots, such as SD cards in a battery compartment. The returned paths do - * not include transient devices, such as USB flash drives. - *
- * An application may store data on any or all of the returned devices. For - * example, an app may choose to store large files on the device with the - * most available space, as measured by {@link StatFs}. - *
- * Starting in {@link android.os.Build.VERSION_CODES#KITKAT}, no permissions - * are required to write to the returned paths; they're always accessible to - * the calling app. Before then, - * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} is required to - * write. Write access outside of these paths on secondary external storage - * devices is not available. To request external storage access in a - * backwards compatible way, consider using {@code android:maxSdkVersion} - * like this: - * - *
<uses-permission - * android:name="android.permission.WRITE_EXTERNAL_STORAGE" - * android:maxSdkVersion="18" />- *
- * The first path returned is the same as - * {@link Context#getExternalFilesDir(String)}. Returned paths may be - * {@code null} if a storage device is unavailable. - * - * @see Context#getExternalFilesDir(String) - * @see EnvironmentCompat#getStorageState(File) - */ - public static File[] getExternalFilesDirs(Context context, String type) { - return context.getExternalFilesDirs(type); - } - - /** - * Returns absolute paths to application-specific directories on all - * external storage devices where the application can place cache files it - * owns. These files are internal to the application, and not typically - * visible to the user as media. - *
- * This is like {@link Context#getCacheDir()} in that these files will be - * deleted when the application is uninstalled, however there are some - * important differences: - *
- * External storage devices returned here are considered a permanent part of - * the device, including both emulated external storage and physical media - * slots, such as SD cards in a battery compartment. The returned paths do - * not include transient devices, such as USB flash drives. - *
- * An application may store data on any or all of the returned devices. For - * example, an app may choose to store large files on the device with the - * most available space, as measured by {@link StatFs}. - *
- * Starting in {@link android.os.Build.VERSION_CODES#KITKAT}, no permissions - * are required to write to the returned paths; they're always accessible to - * the calling app. Before then, - * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} is required to - * write. Write access outside of these paths on secondary external storage - * devices is not available. To request external storage access in a - * backwards compatible way, consider using {@code android:maxSdkVersion} - * like this: - * - *
<uses-permission - * android:name="android.permission.WRITE_EXTERNAL_STORAGE" - * android:maxSdkVersion="18" />- *
- * The first path returned is the same as - * {@link Context#getExternalCacheDir()}. Returned paths may be {@code null} - * if a storage device is unavailable. - * - * @see Context#getExternalCacheDir() - * @see EnvironmentCompat#getStorageState(File) - */ - public static File[] getExternalCacheDirs(Context context) { - return context.getExternalCacheDirs(); - } - - /** - * Return a drawable object associated with a particular resource ID. - *
- * Starting in {@link android.os.Build.VERSION_CODES#LOLLIPOP}, the returned - * drawable will be styled for the specified Context's theme. - * - * @param id The desired resource identifier, as generated by the aapt tool. - * This integer encodes the package, type, and resource entry. - * The value 0 is an invalid identifier. - * @return Drawable An object that can be used to draw this resource. - */ - public static final Drawable getDrawable(Context context, int id) { - return context.getDrawable(id); - } - - /** - * Returns the absolute path to the directory on the filesystem similar to - * {@link Context#getFilesDir()}. The difference is that files placed under this - * directory will be excluded from automatic backup to remote storage on - * devices running {@link android.os.Build.VERSION_CODES#LOLLIPOP} or later. See - * {@link android.app.backup.BackupAgent BackupAgent} for a full discussion - * of the automatic backup mechanism in Android. - * - *
No permissions are required to read or write to the returned path, since this - * path is internal storage. - * - * @return The path of the directory holding application files that will not be - * automatically backed up to remote storage. - * - * @see android.content.Context.getFilesDir - */ - public final File getNoBackupFilesDir(Context context) { - return context.getNoBackupFilesDir(); - } - - /** - * Returns the absolute path to the application specific cache directory on - * the filesystem designed for storing cached code. On devices running - * {@link android.os.Build.VERSION_CODES#LOLLIPOP} or later, the system will delete - * any files stored in this location both when your specific application is - * upgraded, and when the entire platform is upgraded. - *
- * This location is optimal for storing compiled or optimized code generated - * by your application at runtime. - *
- * Apps require no extra permissions to read or write to the returned path, - * since this path lives in their private storage. - * - * @return The path of the directory holding application code cache files. - */ - public final File getCodeCacheDir(Context context) { - return context.getCodeCacheDir(); - } -} \ No newline at end of file diff --git a/AndroidCompat/src/main/java/android/support/v4/os/EnvironmentCompat.java b/AndroidCompat/src/main/java/android/support/v4/os/EnvironmentCompat.java deleted file mode 100644 index e98982fc..00000000 --- a/AndroidCompat/src/main/java/android/support/v4/os/EnvironmentCompat.java +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package android.support.v4.os; - -import android.os.Environment; - -import java.io.File; - -/** - * Helper for accessing features in {@link Environment} introduced after API - * level 4 in a backwards compatible fashion. - */ -public class EnvironmentCompat { - /** - * Unknown storage state, such as when a path isn't backed by known storage - * media. - * - * @see #getStorageState(File) - */ - public static final String MEDIA_UNKNOWN = "unknown"; - - /** - * Returns the current state of the storage device that provides the given - * path. - * - * @return one of {@link #MEDIA_UNKNOWN}, {@link Environment#MEDIA_REMOVED}, - * {@link Environment#MEDIA_UNMOUNTED}, - * {@link Environment#MEDIA_CHECKING}, - * {@link Environment#MEDIA_NOFS}, - * {@link Environment#MEDIA_MOUNTED}, - * {@link Environment#MEDIA_MOUNTED_READ_ONLY}, - * {@link Environment#MEDIA_SHARED}, - * {@link Environment#MEDIA_BAD_REMOVAL}, or - * {@link Environment#MEDIA_UNMOUNTABLE}. - */ - public static String getStorageState(File path) { - return Environment.getStorageState(path); - } -} \ No newline at end of file diff --git a/AndroidCompat/src/main/java/android/support/v7/preference/PreferenceDataStore.java b/AndroidCompat/src/main/java/android/support/v7/preference/PreferenceDataStore.java deleted file mode 100644 index ab7ec0c8..00000000 --- a/AndroidCompat/src/main/java/android/support/v7/preference/PreferenceDataStore.java +++ /dev/null @@ -1,193 +0,0 @@ -/* - * Copyright (C) 2017 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package android.support.v7.preference; - -import android.support.annotation.Nullable; - -import java.util.Set; - -/** - * A data store interface to be implemented and provided to the Preferences framework. This can be - * used to replace the default {@link android.content.SharedPreferences}, if needed. - * - *
In most cases you want to use {@link android.content.SharedPreferences} as it is automatically - * backed up and migrated to new devices. However, providing custom data store to preferences can be - * useful if your app stores its preferences in a local db, cloud or they are device specific like - * "Developer settings". It might be also useful when you want to use the preferences UI but - * the data are not supposed to be stored at all because they are valid per session only. - * - *
Once a put method is called it is full responsibility of the data store implementation to - * safely store the given values. Time expensive operations need to be done in the background to - * prevent from blocking the UI. You also need to have a plan on how to serialize the data in case - * the activity holding this object gets destroyed. - * - *
By default, all "put" methods throw {@link UnsupportedOperationException}. - */ -public abstract class PreferenceDataStore { - - /** - * Sets a {@link String} value to the data store. - * - *
Once the value is set the data store is responsible for holding it. - * - * @param key the name of the preference to modify - * @param value the new value for the preference - * @see #getString(String, String) - */ - public void putString(String key, @Nullable String value) { - throw new UnsupportedOperationException("Not implemented on this data store"); - } - - /** - * Sets a set of Strings to the data store. - * - *
Once the value is set the data store is responsible for holding it.
- *
- * @param key the name of the preference to modify
- * @param values the set of new values for the preference
- * @see #getStringSet(String, Set Once the value is set the data store is responsible for holding it.
- *
- * @param key the name of the preference to modify
- * @param value the new value for the preference
- * @see #getInt(String, int)
- */
- public void putInt(String key, int value) {
- throw new UnsupportedOperationException("Not implemented on this data store");
- }
-
- /**
- * Sets a {@link Long} value to the data store.
- *
- * Once the value is set the data store is responsible for holding it.
- *
- * @param key the name of the preference to modify
- * @param value the new value for the preference
- * @see #getLong(String, long)
- */
- public void putLong(String key, long value) {
- throw new UnsupportedOperationException("Not implemented on this data store");
- }
-
- /**
- * Sets a {@link Float} value to the data store.
- *
- * Once the value is set the data store is responsible for holding it.
- *
- * @param key the name of the preference to modify
- * @param value the new value for the preference
- * @see #getFloat(String, float)
- */
- public void putFloat(String key, float value) {
- throw new UnsupportedOperationException("Not implemented on this data store");
- }
-
- /**
- * Sets a {@link Boolean} value to the data store.
- *
- * Once the value is set the data store is responsible for holding it.
- *
- * @param key the name of the preference to modify
- * @param value the new value for the preference
- * @see #getBoolean(String, boolean)
- */
- public void putBoolean(String key, boolean value) {
- throw new UnsupportedOperationException("Not implemented on this data store");
- }
-
- /**
- * Retrieves a {@link String} value from the data store.
- *
- * @param key the name of the preference to retrieve
- * @param defValue value to return if this preference does not exist in the storage
- * @return the value from the data store or the default return value
- * @see #putString(String, String)
- */
- @Nullable
- public String getString(String key, @Nullable String defValue) {
- return defValue;
- }
-
- /**
- * Retrieves a set of Strings from the data store.
- *
- * @param key the name of the preference to retrieve
- * @param defValues values to return if this preference does not exist in the storage
- * @return the values from the data store or the default return values
- * @see #putStringSet(String, Set