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java - 如何设置全屏OnTouchListener?

转载 作者:太空宇宙 更新时间:2023-11-03 12:36:38 25 4
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请看下面的代码。我只发布代码的重要部分。

activity_game.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/fullView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".Game" >

<TextView
android:id="@+id/numberOfQuestionsLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="20dp"
android:text="TextView" />
</RelativeLayout>

游戏.java

public class Game extends Activity {



private View fullView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);

fullView = (View)findViewById(R.id.fullView);
fullView.setOnTouchListener(imageViewSwiped);



}


OnTouchListener imageViewSwiped = new OnSwipeTouchListener()
{
public boolean onSwipeRight()
{
//code removed
}

public boolean onSwipeLeft()
{
//code removed
return true;
}

public boolean onSwipeBottom()
{
//code removed
return true;
}


};
}

OnSwipTouchListener.java

注意 - 我不拥有此类代码。它是由另一位 SO 成员编写的。

  package game.Game;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;

public class OnSwipeTouchListener implements OnTouchListener {

private final GestureDetector gestureDetector = new GestureDetector(new GestureListener());

public boolean onTouch(final View v, final MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}

private final class GestureListener extends SimpleOnGestureListener {

private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;

@Override
public boolean onDown(MotionEvent e) {
return super.onDown(e);
}

@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
result = onSwipeRight();
} else {
result = onSwipeLeft();
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
result = onSwipeBottom();
} else {
result = onSwipeTop();
}
}
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
}

public boolean onSwipeRight() {
return false;
}

public boolean onSwipeLeft() {
return false;
}

public boolean onSwipeTop() {
return false;
}

public boolean onSwipeBottom() {
return false;
}
}

现在,我正在尝试启用 make the WHOLE ACTIVITY touched 。请查看 Game.java 看看我是怎么做到的。但问题是,它对任何类型的触摸事件都没有反应!代码 OnSwipTouchListener.java 没有任何问题,因为我通过将监听器设置为 image view 来使用触摸事件。

在我尝试启用整个 Activity 触摸时一定存在问题。我所说的“启用整个 Activity 触摸”的意思是,我需要在整个屏幕上滑动,而不是将监听器添加到 imageview

我做错了什么?

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