RE:启动另一个应用程序 并从服务启动 Intent后移回应用程序导致崩溃
我现在可以从我的服务正确启动终端,但是我的下一步是在服务启动终端意图后重新启动应用程序的主要活动。
我正在使用:
public void backtoEmplayer(){
Intent intenti = new Intent(MainService.this,MainActivity.class);
intenti.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intenti.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(intenti);
}
这样它就会简单地提出仍应运行的主要活动(因为在此设备上启动的唯一两件事将是我的应用程序和终端)。但是,当我运行上面的代码时,出现以下错误:
E/AndroidRuntime (1859): FATAL EXCEPTION: Thread-931
E/AndroidRuntime (1859): android.util.AndroidRuntimeException: Calling startActvitiy() from outside of an Activity context requires the FLAT_ACTIVITY_NEW_TASK flas. Is this really what you want?
E/AndroidRuntime (1859): at android.app.ContextImpl.startActivity(ContextImpl.java:864)
E/AndroidRuntime (1859): at android.content.ContentWrapper.startActivity(ContextWrapper.java 276)
E/AndroidRuntime (1859): at packagename.MainService.backtoEmplayer(MainService.java:187)
我不明白的是,我正在使用 FLAT_ACTIVITY_NEW_TASK 标志,但它仍然不起作用。
我的完整服务类现在看起来像:
public class MainService extends Service {
boolean copied = false;
private String mHandle;
private static final int REQUEST_WINDOW_HANDLE = 1;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
}
@Override
public void onDestroy() {
}
@Override
public void onStart(Intent intent, int startId) {
Thread usbUpdateThread = new Thread() {
public void run() {
while (true) {
while (!copied) {
try {
Thread.sleep(180000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
runCommand("chmod -R 777 /media/cdrom/");
copied = false;
}
}
};
Thread InternetThread = new Thread() {
public void run() {
while (true){
try {
Thread.sleep(3600000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
runCommand("php update.php");
}
}
};
Thread CheckThread = new Thread() {
public void run() {
while (true) {
try {
Thread.sleep(300000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
runCommand("sh check.sh");
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
backtoEmplayer();
}
}
};
InternetThread.start();
CheckThread.start();
usbUpdateThread.start();
}
public boolean runCommand(String command) {
Intent intent = new Intent("jackpal.androidterm.RUN_SCRIPT");
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.putExtra("jackpal.androidterm.iInitialCommand", command);
intent.putExtra("jackpal.androidterm.window_handle", MainActivity.mHandle);
startActivity(intent);
return true;
}
public void backtoEmplayer(){
Intent intenti = new Intent(MainService.this,MainActivity.class);
intenti.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intenti.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(intenti);
}
}