android.content.Context#MODE_MULTI_PROCESS源码实例Demo

下面列出了android.content.Context#MODE_MULTI_PROCESS 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    checkMode(mode);
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码2 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (sSharedPrefs) {
        sp = sSharedPrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            sSharedPrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码3 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (sSharedPrefs) {
        sp = sSharedPrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            sSharedPrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码4 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (sSharedPrefs) {
        sp = sSharedPrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            sSharedPrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码5 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (sSharedPrefs) {
        sp = sSharedPrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            sSharedPrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码6 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    checkMode(mode);
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码7 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    checkMode(mode);
    if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
        if (isCredentialProtectedStorage()
                && !getSystemService(StorageManager.class).isUserKeyUnlocked(
                        UserHandle.myUserId())
                && !isBuggy()) {
            throw new IllegalStateException("SharedPreferences in credential encrypted "
                    + "storage are not available until after user is unlocked");
        }
    }
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码8 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            checkMode(mode);
            if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
                if (isCredentialProtectedStorage()
                        && !getSystemService(UserManager.class)
                                .isUserUnlockingOrUnlocked(UserHandle.myUserId())) {
                    throw new IllegalStateException("SharedPreferences in credential encrypted "
                            + "storage are not available until after user is unlocked");
                }
            }
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码9 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            checkMode(mode);
            if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
                if (isCredentialProtectedStorage()
                        && !getSystemService(UserManager.class)
                                .isUserUnlockingOrUnlocked(UserHandle.myUserId())) {
                    throw new IllegalStateException("SharedPreferences in credential encrypted "
                            + "storage are not available until after user is unlocked");
                }
            }
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码10 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            checkMode(mode);
            if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
                if (isCredentialProtectedStorage()
                        && !getSystemService(UserManager.class)
                                .isUserUnlockingOrUnlocked(UserHandle.myUserId())) {
                    throw new IllegalStateException("SharedPreferences in credential encrypted "
                            + "storage are not available until after user is unlocked");
                }
            }
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码11 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file);
        if (sp == null) {
            checkMode(mode);
            if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
                if (isCredentialProtectedStorage()
                        && !getSystemService(UserManager.class)
                                .isUserUnlockingOrUnlocked(UserHandle.myUserId())) {
                    throw new IllegalStateException("SharedPreferences in credential encrypted "
                            + "storage are not available until after user is unlocked");
                }
            }
            sp = new SharedPreferencesImpl(file, mode);
            cache.put(file, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码12 项目： android_9.0.0_r45 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(File file, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        final ArrayMap<File, SharedPreferencesImpl> cache = getSharedPreferencesCacheLocked();
        sp = cache.get(file); // 先从缓存中尝试获取 sp
        if (sp == null) { // 如果获取缓存失败
            checkMode(mode); // 检查 mode
            if (getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.O) {
                if (isCredentialProtectedStorage()
                        && !getSystemService(UserManager.class)
                                .isUserUnlockingOrUnlocked(UserHandle.myUserId())) {
                    throw new IllegalStateException("SharedPreferences in credential encrypted "
                            + "storage are not available until after user is unlocked");
                }
            }
            sp = new SharedPreferencesImpl(file, mode); // 创建 SharedPreferencesImpl
            cache.put(file, sp);
            return sp;
        }
    }

    // mode 为 MODE_MULTI_PROCESS 时，文件可能被其他进程修改，则重新加载
    // 显然这并不足以保证跨进程安全
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码13 项目： Neptune 文件： CustomContextWrapper.java

/**
 * Android 4.4-6.0
 * <herf>http://androidxref.com/4.4_r1/xref/frameworks/base/core/java/android/app/ContextImpl.java#184</herf>
 * <href>http://androidxref.com/6.0.0_r1/xref/frameworks/base/core/java/android/app/ContextImpl.java#132</href>
 * ContextImpl.java
 * private static ArrayMap<String, ArrayMap<String, SharedPreferencesImpl>> sSharedPrefs;
 */
@TargetApi(Build.VERSION_CODES.KITKAT)
private SharedPreferences getSharedPreferencesV19(String name, int mode)
        throws Exception {
    Object sp = null;
    Class<?> clazz = Class.forName("android.app.ContextImpl");
    Class<?> SharedPreferencesImpl = Class.forName("android.app.SharedPreferencesImpl");
    Constructor<?> constructor = SharedPreferencesImpl.getDeclaredConstructor(File.class, int.class);
    constructor.setAccessible(true);
    ArrayMap<String, ArrayMap<String, Object>> oSharedPrefs = ReflectionUtils.on(this.getBaseContext())
            .<ArrayMap<String, ArrayMap<String, Object>>>get(S_SHARED_PREFS);
    synchronized (clazz) {
        if (oSharedPrefs == null) {
            oSharedPrefs = new ArrayMap<String, ArrayMap<String, Object>>();
        }

        final String packageName = getPluginPackageName();
        ArrayMap<String, Object> packagePrefs = oSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<String, Object>();
            oSharedPrefs.put(packageName, packagePrefs);
        }

        sp = packagePrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = constructor.newInstance(prefsFile, mode);
            packagePrefs.put(name, sp);
            return (SharedPreferences) sp;
        }
        if ((mode & Context.MODE_MULTI_PROCESS) != 0 || getPluginPackageInfo()
                .getPackageInfo().applicationInfo.targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
            ReflectionUtils.on(sp).call("startReloadIfChangedUnexpectedly", sMethods, null);
        }
    }
    return (SharedPreferences) sp;
}

源代码14 项目： Neptune 文件： CustomContextWrapper.java

/**
 * Android 4.0-4.3
 * <href>http://androidxref.com/4.0.3_r1/xref/frameworks/base/core/java/android/app/ContextImpl.java#142</href>
 * <href>http://androidxref.com/4.3_r2.1/xref/frameworks/base/core/java/android/app/ContextImpl.java#172</href>
 * ContextImpl.java
 * private static final HashMap<String, SharedPreferencesImpl> sSharedPrefs
 */
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private SharedPreferences getSharedPreferencesV14(String name, int mode)
        throws Exception {
    Object sp = null;
    Class<?> SharedPreferencesImpl = Class.forName("android.app.SharedPreferencesImpl");
    Constructor<?> constructor = SharedPreferencesImpl.getDeclaredConstructor(File.class, int.class);
    constructor.setAccessible(true);
    HashMap<String, Object> oSharedPrefs = ReflectionUtils.on(this.getBaseContext())
            .<HashMap<String, Object>>get(S_SHARED_PREFS);

    final String packageName = getPluginPackageName();
    final String nameKey = packageName + "_" + name;
    synchronized (oSharedPrefs) {
        sp = oSharedPrefs.get(nameKey);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = constructor.newInstance(prefsFile, mode);
            oSharedPrefs.put(nameKey, sp);
            return (SharedPreferences) sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 || getPluginPackageInfo()
            .getPackageInfo().applicationInfo.targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        ReflectionUtils.on(sp).call("startReloadIfChangedUnexpectedly", sMethods, null);
    }
    return (SharedPreferences) sp;
}

源代码15 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new ArrayMap<String, ArrayMap<String, SharedPreferencesImpl>>();
        }

        final String packageName = getPackageName();
        ArrayMap<String, SharedPreferencesImpl> packagePrefs = sSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<String, SharedPreferencesImpl>();
            sSharedPrefs.put(packageName, packagePrefs);
        }

        // At least one application in the world actually passes in a null
        // name.  This happened to work because when we generated the file name
        // we would stringify it to "null.xml".  Nice.
        if (mPackageInfo.getApplicationInfo().targetSdkVersion <
                Build.VERSION_CODES.KITKAT) {
            if (name == null) {
                name = "null";
            }
        }

        sp = packagePrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            packagePrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码16 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new ArrayMap<String, ArrayMap<String, SharedPreferencesImpl>>();
        }

        final String packageName = getPackageName();
        ArrayMap<String, SharedPreferencesImpl> packagePrefs = sSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<String, SharedPreferencesImpl>();
            sSharedPrefs.put(packageName, packagePrefs);
        }

        // At least one application in the world actually passes in a null
        // name.  This happened to work because when we generated the file name
        // we would stringify it to "null.xml".  Nice.
        if (mPackageInfo.getApplicationInfo().targetSdkVersion <
                Build.VERSION_CODES.KITKAT) {
            if (name == null) {
                name = "null";
            }
        }

        sp = packagePrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            packagePrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码17 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new ArrayMap<String, ArrayMap<String, SharedPreferencesImpl>>();
        }

        final String packageName = getPackageName();
        ArrayMap<String, SharedPreferencesImpl> packagePrefs = sSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<String, SharedPreferencesImpl>();
            sSharedPrefs.put(packageName, packagePrefs);
        }

        // At least one application in the world actually passes in a null
        // name.  This happened to work because when we generated the file name
        // we would stringify it to "null.xml".  Nice.
        if (mPackageInfo.getApplicationInfo().targetSdkVersion <
                Build.VERSION_CODES.KITKAT) {
            if (name == null) {
                name = "null";
            }
        }

        sp = packagePrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            packagePrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码18 项目： AndroidComponentPlugin 文件： ContextImpl.java

@Override
public SharedPreferences getSharedPreferences(String name, int mode) {
    SharedPreferencesImpl sp;
    synchronized (ContextImpl.class) {
        if (sSharedPrefs == null) {
            sSharedPrefs = new ArrayMap<String, ArrayMap<String, SharedPreferencesImpl>>();
        }

        final String packageName = getPackageName();
        ArrayMap<String, SharedPreferencesImpl> packagePrefs = sSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<String, SharedPreferencesImpl>();
            sSharedPrefs.put(packageName, packagePrefs);
        }

        // At least one application in the world actually passes in a null
        // name.  This happened to work because when we generated the file name
        // we would stringify it to "null.xml".  Nice.
        if (mPackageInfo.getApplicationInfo().targetSdkVersion <
                Build.VERSION_CODES.KITKAT) {
            if (name == null) {
                name = "null";
            }
        }

        sp = packagePrefs.get(name);
        if (sp == null) {
            File prefsFile = getSharedPrefsFile(name);
            sp = new SharedPreferencesImpl(prefsFile, mode);
            packagePrefs.put(name, sp);
            return sp;
        }
    }
    if ((mode & Context.MODE_MULTI_PROCESS) != 0 ||
        getApplicationInfo().targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
        // If somebody else (some other process) changed the prefs
        // file behind our back, we reload it.  This has been the
        // historical (if undocumented) behavior.
        sp.startReloadIfChangedUnexpectedly();
    }
    return sp;
}

源代码19 项目： Neptune 文件： CustomContextWrapper.java

/**
 * Android 7.0+系统，
 * <href>http://androidxref.com/7.0.0_r1/xref/frameworks/base/core/java/android/app/ContextImpl.java#141</href>
 * ContextImpl.java
 * private static ArrayMap<String, ArrayMap<File, SharedPreferencesImpl>> sSharedPrefsCache;
 * private ArrayMap<String, File> mSharedPrefsPaths;
 */
@TargetApi(Build.VERSION_CODES.N)
private SharedPreferences getSharedPreferencesV24(String name, int mode) throws Exception {
    Object sp = null;
    Class<?> clazz = Class.forName("android.app.ContextImpl");
    Class<?> SharedPreferencesImpl = Class.forName("android.app.SharedPreferencesImpl");
    Constructor<?> constructor = SharedPreferencesImpl.getDeclaredConstructor(File.class, int.class);
    constructor.setAccessible(true);
    ArrayMap<String, ArrayMap<File, Object>> oSharedPrefs = ReflectionUtils.on(this.getBaseContext())
            .<ArrayMap<String, ArrayMap<File, Object>>>get(S_SHARED_PREFS);
    ArrayMap<String, File> oSharedPrefsPaths = VersionUtils.hasPie() ? null :
            ReflectionUtils.on(this.getBaseContext()).<ArrayMap<String, File>>get(M_SHARED_PREFS_PATHS);
    synchronized (clazz) {
        if (oSharedPrefsPaths == null) {
            oSharedPrefsPaths = new ArrayMap<String, File>();
        }
        final String packageName = getPluginPackageName();
        final String fileKey = packageName + "_" + name;
        File prefsFile = oSharedPrefsPaths.get(fileKey);
        if (prefsFile == null) {
            prefsFile = getSharedPrefsFile(name);
            oSharedPrefsPaths.put(fileKey, prefsFile);
        }

        if (oSharedPrefs == null) {
            oSharedPrefs = new ArrayMap<String, ArrayMap<File, Object>>();
        }

        ArrayMap<File, Object> packagePrefs = oSharedPrefs.get(packageName);
        if (packagePrefs == null) {
            packagePrefs = new ArrayMap<File, Object>();
            oSharedPrefs.put(packageName, packagePrefs);
        }

        sp = packagePrefs.get(prefsFile);
        if (sp == null) {
            sp = constructor.newInstance(prefsFile, mode);
            packagePrefs.put(prefsFile, sp);
            return (SharedPreferences) sp;
        }
        if ((mode & Context.MODE_MULTI_PROCESS) != 0 || getPluginPackageInfo()
                .getPackageInfo().applicationInfo.targetSdkVersion < android.os.Build.VERSION_CODES.HONEYCOMB) {
            ReflectionUtils.on(sp).call("startReloadIfChangedUnexpectedly", sMethods, null);
        }
    }
    return (SharedPreferences) sp;
}

方法所在类

android.content.Context