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语言: Java
分类: Android 组件
最后更新于 2017-09-13 23:18
gistfile1.txt
原始数据 复制代码
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.os.Bundle;
import android.os.Handler;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
/**
* @author Dawid Drozd
* <p>
* Please check before adding this fragment simply call
* isFragmentAvailable.
* <p>
* You must manually call onKeyDown and onWindowFocusChanged.
*/
public abstract class FullScreenActivity extends Activity implements Runnable {
//全屏使用的flag
private static final int UI_FLAGS = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
GestureDetector mGesture = null;
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mGesture = new GestureDetector(this, new GestureListener());
final View decorView = getWindow().getDecorView();
decorView.setOnSystemUiVisibilityChangeListener
(new View.OnSystemUiVisibilityChangeListener() {
@Override
public void onSystemUiVisibilityChange(int visibility) {
// System.out.println("=====onSystemUiVisibilityChange=======");
if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
setImmersiveMode();
// System.out.println("system bars are visible");
}
}
});
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
mGesture.onTouchEvent(ev);
return super.dispatchTouchEvent(ev);
}
@Override
protected void onResume() {
super.onResume();
setImmersiveMode();
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
// System.out.println("onWindowFocusChanged");
setImmersiveMode();
_handler.removeCallbacks(this);
_handler.postDelayed(this, 20);
}
@Override
public void onStop() {
_handler.removeCallbacks(this);
super.onStop();
}
@Override
public void run() {
setImmersiveMode();
}
@SuppressLint("NewApi")
public void setImmersiveMode() {
setImmersiveMode(this);
}
@SuppressLint("NewApi")
public void setImmersiveMode(Activity activity) {
// System.out.println("===============setImmersiveMode===============");
activity.getWindow().getDecorView().setSystemUiVisibility(UI_FLAGS);
}
private Handler _handler = new Handler() ;
private void addView() {
// System.out.println("============addView ============");
AlertDialog builder = new AlertDialog.Builder(this).create();
builder.setTitle("测试");
builder.show();
builder.dismiss();
}
class GestureListener extends GestureDetector.SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
//判断导航栏是否弹出,这是在横屏情况下
System.out.println("========onFling========");
if (e1.getY() > e2.getY() && e1.getY() > 1480) {//从下往上滑
addView();
} else if (e1.getY() < e2.getY() && e1.getY() < 70) { //从上往下滑
addView();
}
return super.onFling(e1, e2, velocityX, velocityY);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
}
}

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