如何开启/关闭飞行模式,即使是在新的Android版本(甚至用根)? [英] How to turn on/off airplane mode, even on new Android versions (and even with root)?
问题描述
与Android 4.2开始,/关闭飞行模式开启不使用正常的API支持。
Starting with Android 4.2 , turning on/off airplane mode isn't supported using normal APIs.
当WRITE_SECURE_SETTINGS权限授予它应该工作,但是这只是系统的应用程序(如我读过)。
It should probably work when WRITE_SECURE_SETTINGS permission is granted, but that's only for system apps (as I've read).
我应该以同根做的设备来完成?
What should be done in order to do it on devices with root?
如果一个系统的应用还需要根以切换飞行模式?
Should a system app also require root in order to toggle airplane mode?
推荐答案
要切换的固定翼/飞行模式和关闭在Android 植根设备(手机,平板电脑,注),你可以执行以下操作:
To toggle Airplane / Flight mode on and off on an Android rooted device (phone, tablet, note), you can do the following:
private final String COMMAND_FLIGHT_MODE_1 = "settings put global airplane_mode_on";
private final String COMMAND_FLIGHT_MODE_2 = "am broadcast -a android.intent.action.AIRPLANE_MODE --ez state";
@SuppressLint("NewApi")
@SuppressWarnings("deprecation")
public void setFlightMode(Context context) {
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {
// API 17 onwards.
if (isRooted(context)) {
int enabled = isFlightModeEnabled(context) ? 0 : 1;
// Set Airplane / Flight mode using su commands.
String command = COMMAND_FLIGHT_MODE_1 + " " + enabled;
executeCommandWithoutWait(context, "-c", command);
command = COMMAND_FLIGHT_MODE_2 + " " + enabled;
executeCommandWithoutWait(context, "-c", command);
} else {
try {
// No root permission, just show Airplane / Flight mode setting screen.
Intent intent = new Intent(Settings.ACTION_AIRPLANE_MODE_SETTINGS);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
} catch (ActivityNotFoundException e) {
Log.e(TAG, "Setting screen not found due to: " + e.fillInStackTrace());
}
}
} else {
// API 16 and earlier.
boolean enabled = isFlightModeEnabled(context);
Settings.System.putInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, enabled ? 0 : 1);
Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
intent.putExtra("state", !enabled);
context.sendBroadcast(intent);
}
要检查是否固定翼/飞行模式已经开启和关闭,请执行以下操作:
To check whether Airplane / Flight mode is already on and off, do the following:
@SuppressLint("NewApi")
@SuppressWarnings("deprecation")
private boolean isFlightModeEnabled(Context context) {
boolean mode = false;
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {
// API 17 onwards
mode = Settings.Global.getInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0) == 1;
} else {
// API 16 and earlier.
mode = Settings.System.getInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) == 1;
}
return mode;
}
要执行苏
指令,请执行以下操作:
To execute su
command, do the following:
private void executeCommandWithoutWait(Context context, String option, String command) {
boolean success = false;
String su = "su";
for (int i=0; i < 3; i++) {
// "su" command executed successfully.
if (success) {
// Stop executing alternative su commands below.
break;
}
if (i == 1) {
su = "/system/xbin/su";
} else if (i == 2) {
su = "/system/bin/su";
}
try {
// execute command
Runtime.getRuntime().exec(new String[]{su, option, command});
} catch (IOException e) {
Log.e(TAG, "su command has failed due to: " + e.fillInStackTrace());
}
}
}
另外,如果您的应用程序:
Alternatively, if your app:
- 在与一位Android框架的证书签名;和
- 在安装到
/系统/应用/
目录;和 - 您也可以在
的AndroidManifest.xml
申报文件中的相关标记(如WRITE_SECURE_SETTINGS
等)。
- Was signed with an Android framework's certificate; and
- Was installed to the
/system/app/
directory; and - Have the relevant tags declared in
AndroidManifest.xml
file (e.g.WRITE_SECURE_SETTINGS
, etc).
那么你可以这样做:
Settings.Global.putInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, isEnabled ? 0 : 1);
由于 Settings.Global
定义什么都可以读写通过系统的应用程序 - 甚至创建为系统应用程序的第三方应用程序
Since anything defined in Settings.Global
can be read-write by system apps - even third-party app created as a system app.
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