Android：如何在“强制关闭”后自动重启应用程序？
在Android应用程序中，如果我们没有得到正确的例外，我们通常会收到“强制关闭”错误。
如果强行关闭，如何自动重启我的应用程序？
是否有任何特定的权限用于此？
5个解决方案
92 votes
要做到这一点，你必须做两件事：
避免“强制关闭” - 标准的应用程序崩溃方式。
无论如何都要在发生崩溃时设置重启机制。
请参阅以下如何执行以下操作：
调用onCreate()以捕获所有未捕获的异常，在这种情况下将调用PendingIntent方法。 “强制关闭”将不会出现，应用程序将无法响应，这不是一件好事。为了在崩溃时重新启动应用程序，您应该执行以下操作：
在onCreate()方法中，在您的主要活动中初始化一个PendingIntent成员：
onCreate()
然后将以下内容放入onCreate()方法中：
AlarmManager mgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 2000, intent);
System.exit(2);
您还必须致电onCreate()，否则将无法使用。这样，您的应用程序将在2秒后重新启动。
最终你可以在应用程序崩溃的意图中设置一些标志，并且在你的onCreate()方法中你可以显示一个对话框“我很抱歉，应用程序崩溃了，希望永远不会再次:)”。
Gyuri Majercsik answered -06-14T07:59:02Z
17 votes
诀窍是确保它首先不强制关闭。
如果使用UncaughtExceptionHandler方法，则可以捕获导致应用程序强制关闭的异常。
有关使用UncaughtExceptionHandler记录应用程序引发的异常的示例，请查看此问题。
Dave Webb answered -06-14T07:59:42Z
7 votes
如果您使用Crittercism或其他一些错误报告服务，接受的答案几乎是正确的..
final UncaughtExceptionHandler defaultHandler = Thread.getDefaultUncaughtExceptionHandler();
Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler() {
public void uncaughtException(Thread thread, Throwable ex) {
Intent launchIntent = new Intent(activity().getIntent());
PendingIntent pending = PendingIntent.getActivity(CSApplication.getContext(), 0,
launchIntent, activity().getIntent().getFlags());
getAlarmManager().set(AlarmManager.RTC, System.currentTimeMillis() + 2000, pending);
defaultHandler.uncaughtException(thread, ex);
}
});
Renetik answered -06-14T08:00:07Z
2 votes
public class ForceCloseExceptionHandalingActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setContentView(MyLayout());
Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
@Override
public void uncaughtException(Thread paramThread, Throwable paramThrowable) {
myHandaling(paramThread, paramThrowable);
}
});
}
private ViewGroup MyLayout(){
LinearLayout mainLayout = new LinearLayout(this);
mainLayout.setOrientation(LinearLayout.VERTICAL);
Button btnHello =new Button(this);
btnHello.setText("Show all button");
btnHello.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setContentView(MyLayout2());
}
});
mainLayout.addView(btnHello);
return mainLayout;
}
private ViewGroup MyLayout2(){
LinearLayout mainLayout = new LinearLayout(this);
mainLayout.setOrientation(LinearLayout.VERTICAL);
Button btnHello =new Button(this);
btnHello.setText("I am a EEROR uncaughtException");
btnHello.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.e("Alert","btn uncaughtException::");
Toast.makeText(ForceCloseExceptionHandalingActivity.this, "Alert uncaughtException222",Toast.LENGTH_LONG).show();
View buttone = null;
setContentView(buttone);
}
});
Button btnHello2 =new Button(this);
btnHello2.setText("I am a EEROR Try n catch");
btnHello2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
try{
View buttone = null;
setContentView(buttone);
}
catch (Exception e) {
Log.e("Alert","Try n catch:::");
Toast.makeText(ForceCloseExceptionHandalingActivity.this, "Alert Try n catch",Toast.LENGTH_LONG).show();
setContentView(MyLayout());
}
}
});
mainLayout.addView(btnHello);
mainLayout.addView(btnHello2);
return mainLayout;
}
public void myHandaling(Thread paramThread, Throwable paramThrowable){
Log.e("Alert","Lets See if it Works !!!" +"paramThread:::" +paramThread +"paramThrowable:::" +paramThrowable);
Toast.makeText(ForceCloseExceptionHandalingActivity.this, "Alert uncaughtException111",Toast.LENGTH_LONG).show();
Intent in =new Intent(ForceCloseExceptionHandalingActivity.this,com.satya.ForceCloseExceptionHandaling.ForceCloseExceptionHandalingActivity.class);
startActivity(in);
finish();
android.os.Process.killProcess(android.os.Process.myPid());
}
@Override
protected void onDestroy() {
Log.e("Alert","onDestroy:::");
Toast.makeText(ForceCloseExceptionHandalingActivity.this, "Alert onDestroy",Toast.LENGTH_LONG).show();
super.onDestroy();
}
Satya answered -06-14T08:00:25Z
1 votes
只需在您的包中添加此类
public class MyExceptionHandler implements
java.lang.Thread.UncaughtExceptionHandler {
private final Context myContext;
private final Class> myActivityClass;
public MyExceptionHandler(Context context, Class> c) {
myContext = context;
myActivityClass = c;
}
public void uncaughtException(Thread thread, Throwable exception) {
StringWriter stackTrace = new StringWriter();
exception.printStackTrace(new PrintWriter(stackTrace));
System.err.println(stackTrace);// You can use LogCat too
Intent intent = new Intent(myContext, myActivityClass);
String s = stackTrace.toString();
//you can use this String to know what caused the exception and in which Activity
intent.putExtra("uncaughtException", "Exception is: " + stackTrace.toString());
intent.putExtra("stacktrace", s);
myContext.startActivity(intent);
//for restarting the Activity
Process.killProcess(Process.myPid());
System.exit(0);
}}
然后简单地致电：
Thread.setDefaultUncaughtExceptionHandler(new MyExceptionHandler(this,
SplashScreenActivity.class));
Suraj Vaishnav answered -06-14T08:00:57Z
