我有一个仪表板活动。我希望从我的应用程序的任何屏幕(从任何活动)打开此活动,直接在屏幕上滑动。如果某个屏幕有水平滚动,则滚动将完成,然后仪表板将打开。我不想实施滑动每一个活动。都会提出一些想法
答案 0 :(得分:0)
您可以通过调用intent来实现。
把这个类全局包。
public class OnSwipeTouchListener implements OnTouchListener {
private final GestureDetector gestureDetector;
public OnSwipeTouchListener(Context ctx) {
gestureDetector = new GestureDetector(ctx, new GestureListener());
}
@Override
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
private final class GestureListener extends SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 1;
private static final int SWIPE_VELOCITY_THRESHOLD = 1;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@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) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
result = true;
} else if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
onSwipeBottom();
} else {
onSwipeTop();
}
}
result = true;
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
}
public void onSwipeRight() {
}
public void onSwipeLeft() {
}
public void onSwipeTop() {
}
public void onSwipeBottom() {
}}
并将该课程用于启用仪表板活动所需的每项活动
例如:sampleActivity.class
switch_action.setOnTouchListener(new OnSwipeTouchListener(Camera.this) {
@Override
public void onSwipeRight() {
super.onSwipeRight();
startActivity(new Intent(sampleActivity.this,Dashboard.class));
}
});
switchAction是透明的相对布局,您需要在示例活动约束中使用
<RelativeLayout
android:id="@+id/switch_action"
android:background="@android:color/transparent"
android:layout_width="match_parent"
android:layout_height="match_parent">
所以一旦用户在屏幕上滑动,就会调用switchaction,你可以根据自己的需要启动start ..