Question

我有一个进度条，它从oncreate方法开始。当我将屏幕方向更改为横向时，线程重新启动并且旧线程状态消失请给我这个问题的任何方法或建议

RelativeLayout layout;
LayoutParams params;
ProgressBar pb;
int i;
Bundle bundle;
Thread t;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    // asyn name = new asyn();
    // name.execute(10);
    bundle = savedInstanceState;
    // params=RelativeLayout.
    pb = (ProgressBar) findViewById(R.id.progressBar1);
    pb.setMax(100);
    t = new Thread(ProActivity.this);
    t.start();
    Display display = ((WindowManager) getSystemService(WINDOW_SERVICE))
            .getDefaultDisplay();
    int orientation = display.getOrientation();
    switch (orientation) {
    case Configuration.ORIENTATION_PORTRAIT:
        //
        Toast.makeText(ProActivity.this, "portrait", 1000).show();
        // pb.setProgress(i);
        setContentView(R.layout.landscape);

        t = new Thread(ProActivity.this);
        t.start();
        pb.setProgress(i);

        break;
    case Configuration.ORIENTATION_LANDSCAPE:
        Toast.makeText(ProActivity.this, "Landscape", 1000).show();
        break;
    }
}

@Override
public void onConfigurationChanged(Configuration newConfig) {

    super.onConfigurationChanged(newConfig);
    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    }
}

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    super.onSaveInstanceState(savedInstanceState);
    savedInstanceState = bundle;
}

public void run() {

    for (i = 0; i < 100; i++) {

        pb.setProgress(i);
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {

            e.printStackTrace();
        }

    }
}

我尝试了这些方法，但它无法重新获得活动线程状态

此致 ribin

Answer 1

在android清单文件中声明它。

    <activity android:name="yourpackagename.ClassName"     
         android:configChanges="keyboardHidden|orientation">
    </activity>

在方向改变android时重新获得当前的活动状态

1 个答案: