android动态全屏切换

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.Button;

public class FullScreenTestActivity extends Activity {
    private Button button;


    private boolean isFulllScreen;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);


        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new OnClickListener() {


            @Override
            public void onClick(View v) {
                isFulllScreen = !isFulllScreen;
                if (isFulllScreen) {
                    button.setText("exit_full_screen");
                    WindowManager.LayoutParams params = getWindow().getAttributes();
                    params.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
                    getWindow().setAttributes(params);
                    getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
                } else {
                    button.setText("full_screen");
                    WindowManager.LayoutParams params = getWindow().getAttributes();
                    params.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
                    getWindow().setAttributes(params);
                    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
                }
            }
        });
    }
}