java - FLAG_NOT_FOCUSABLE Activity

Question

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
    }
}

如果我按下按钮返回，应用程序会停顿 10-15 秒。在日志中写:

D/ANRAppManager: !!! It is not under singleton mode, U can't use it. !!!
I/dalvikvm: threadid=3: reacting to signal 3
D/dalvikvm: dump native stack for : main
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : Thread-7090
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : Binder_2
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : Binder_1
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : Compiler
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : JDWP
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: dump native stack for : GC
D/dalvikvm: unwind backtrace
D/dalvikvm: get native symbol
D/dalvikvm: format backtrace line
D/dalvikvm: get native done
D/dalvikvm: Prepare stack traces for '/data/anr/traces.txt' done
I/dalvikvm: Wrote stack traces to '/data/anr/traces.txt'

和应用程序崩溃。

在此文件/data/anr/traces.txt 中:https://pastebin.com/J6qdJjU7

我正在做类似 AppLocker 的事情。我希望当按钮被按下时，这个 Activity 背后的 Activity (应用程序)关闭，而我的另一个应用程序 Activity 背后的 activity。

使用 FLAG_NOT_FOCUSABLE 不需要的任何实现此功能的方法。怎么做到的？

Answer 1

我忘了关闭主题，但找到了另一种方法来阻止其他人的 Activity ，当我看到需要阻止的应用程序时，只需启动我自己的 Activity