Android通过PopupWindow点击
我创建了一个扩展popupwindow的类。 它的构造函数看起来如下所示
super(builder.context.get());
this.setWindowLayoutMode(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT);
setFocusable(true);
setBackgroundDrawable(new BitmapDrawable());
setTouchInterceptor(onTouchListener);
FrameLayout frameLayout = new FrameLayout(builder.context.get());
LayoutInflater inflater = (LayoutInflater) builder.context.get().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
View overlayBase = inflater.inflate(R.layout.tutorial_view_items, null, false);
frameLayout.addView(builder.backgroundView);
frameLayout.addView(overlayBase);
setContentView(frameLayout);
onTouchListener看起来如下所示：
private OnTouchListener onTouchListener = new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
float x = event.getX();
float y = event.getY();
Log.d(TAG, "Received");
if (Math.pow(x - coordinates[0], 2) + Math.pow((y - coordinates[1]), 2) < Math.pow(radius, 2)) {
Log.d(TAG, "bubbled through");
return false;
}
return true;
}
};
要实际显示popupwindow，我调用SomePopupWindow.showAtLocation(SomeActivity.getWindow().getDecorView().getRootView(), Gravity.CENTER, 0, 0);
以视觉为代表，这里是有问题的产品
touchListener正在响应，但输入不会被发送到基础活动或弹出窗口？ （该按钮没有响应，就好像我要删除ontouchlistener一样，按钮工作正常）。
更新设置触摸监听器到frameLayout（即在这种情况下popupwindow的内容视图）而不是弹出窗口本身允许我点击弹出窗口中定义的按钮。 仍在寻找将触摸事件委托给基础活动/视图的方式
解
为Popupwindow注册一个触摸拦截器。 如果您希望活动处理它，假设您有对该活动的引用，请调用someActivity.dispatchTouchEvent(someMotionEventPassedIntoTheTouchIntercepter); ，如果您希望popupwindow处理触摸，可以调用someView.dispatchTouchEvent(theMotionEventPassedToTouchInterceptor)到popupwindow的内容视图 ，如在popupwindows setContentView(someView)方法中设置的。
我的方法具体如下所示
private OnTouchListener onTouchListener = new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
float x = event.getX();
float y = event.getY();
if (Math.pow(x - coordinates[0], 2) + Math.pow((y - coordinates[1]), 2) < Math.pow(
radius, 2)) {
activity.get().dispatchTouchEvent(event);
return false;
}
frameLayout.dispatchTouchEvent(event);
return true;
}
};
解
为Popupwindow注册一个触摸拦截器。 如果您希望活动处理它，假设您有对该活动的引用，请调用someActivity.dispatchTouchEvent(someMotionEventPassedIntoTheTouchIntercepter); ，如果您希望popupwindow处理触摸，可以调用someView.dispatchTouchEvent(theMotionEventPassedToTouchInterceptor)到popupwindow的内容视图 ，如在popupwindows setContentView(someView)方法中设置的。
我的方法具体如下所示
private OnTouchListener onTouchListener = new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
float x = event.getX();
float y = event.getY();
if (Math.pow(x - coordinates[0], 2) + Math.pow((y - coordinates[1]), 2) < Math.pow(
radius, 2)) {
activity.get().dispatchTouchEvent(event);
return false;
}
frameLayout.dispatchTouchEvent(event);
return true;
}
};
public class TestPopupActivity extends Activity {
//The "x" and "y" position of the "Show Button" on screen.
Point p;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn_show = (Button) findViewById(R.id.show_popup);
btn_show.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
//Open popup window
if (p != null)
showPopup(TestPopupActivity.this, p);
}
});
}
// Get the x and y position after the button is draw on screen
// (It's important to note that we can't get the position in the onCreate(),
// because at that stage most probably the view isn't drawn yet, so it will return (0, 0))
@Override
public void onWindowFocusChanged(boolean hasFocus) {
int[] location = new int[2];
Button button = (Button) findViewById(R.id.show_popup);
// Get the x, y location and store it in the location[] array
// location[0] = x, location[1] = y.
button.getLocationOnScreen(location);
//Initialize the Point with x, and y positions
p = new Point();
p.x = location[0];
p.y = location[1];
}
// The method that displays the popup.
private void showPopup(final Activity context, Point p) {
int popupWidth = 200;
int popupHeight = 150;
// Inflate the popup_layout.xml
LinearLayout viewGroup = (LinearLayout) context.findViewById(R.id.popup);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = layoutInflater.inflate(R.layout.popup_layout, viewGroup);
// Creating the PopupWindow
final PopupWindow popup = new PopupWindow(context);
popup.setContentView(layout);
popup.setWidth(popupWidth);
popup.setHeight(popupHeight);
popup.setFocusable(true);
// Some offset to align the popup a bit to the right, and a bit down, relative to button's position.
int OFFSET_X = 30;
int OFFSET_Y = 30;
// Clear the default translucent background
popup.setBackgroundDrawable(new BitmapDrawable());
// Displaying the popup at the specified location, + offsets.
popup.showAtLocation(layout, Gravity.NO_GRAVITY, p.x + OFFSET_X, p.y + OFFSET_Y);
// Getting a reference to Close button, and close the popup when clicked.
Button close = (Button) layout.findViewById(R.id.close);
close.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
popup.dismiss();
}
});
}
}
试试这个代码可能会帮助你。 ..。 。 或者可能是这个链接会帮助你更多.. http://mrbool.com/how-to-implement-popup-window-in-android/28285
链接地址: http://www.djcxy.com/p/19153.html