Question

当我点击屏幕时，我正试图让控制按钮弹出开/关画面。他们将覆盖视频。我遇到的问题是如何为已经膨胀的布局创建触摸事件例程如下：
1）为视频设置初始内容;
2）在视频顶部扩展包含控件的布局（XML）;
3）（需要做）为新膨胀的布局创建onTouch事件，当用户点击屏幕时隐藏/显示按钮。

包含要显示/隐藏的按钮的布局：

    <GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:id="@+id/dpad_grid"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:columnCount="3"
                android:orientation="horizontal"
                android:layout_alignParentBottom="true"
                android:layout_centerHorizontal="true">

        <Button
            android:id="@+id/tiltUp"
            android:background="@drawable/arrow_up"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:layout_row="0"
            android:layout_column="1"/>

        <Button
            android:id="@+id/panRight"
            android:background="@drawable/arrow_right"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_row="1"
            android:layout_column="2"/>

        <Button
            android:id="@+id/tiltDown"
            android:background="@drawable/arrow_down"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:layout_marginBottom="8dp"
            android:layout_row="2"
            android:layout_column="1"/>

        <Button
            android:id="@+id/panLeft"
            android:background="@drawable/arrow_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="5dp"
            android:layout_row="1"
            android:layout_column="0"/>

    </GridLayout>

    <Button
        android:id="@+id/zoomIn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="15dp"
        android:background="@drawable/zoom_in"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"/>

    <Button
        android:id="@+id/zoomOut"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/zoom_out"
        android:layout_marginRight="0dp"
        android:layout_alignParentBottom="true"
        android:layout_toStartOf="@+id/zoomIn"/>

    <Button
        android:id="@+id/irisDarker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="8dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentStart="true"
        android:background="@drawable/iris_darker"/>

    <Button
        android:id="@+id/irisBrighter"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_toEndOf="@+id/irisDarker"
        android:background="@drawable/iris_brighter"/>

    <Button
        android:id="@+id/focusFar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/dpad_grid"
        android:layout_marginRight="20dp"
        android:layout_alignParentStart="true"
        android:background="@drawable/focus_far"/>

    <Button
        android:id="@+id/focusNear"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/focus_near"
        android:layout_alignTop="@+id/focusFar"
        android:layout_alignStart="@+id/irisBrighter"/>

    <Button
        android:id="@+id/snapshot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:background="@drawable/camera"
        android:layout_alignEnd="@+id/focusFar"
        android:layout_alignParentStart="true"/>

    <Button
        android:id="@+id/settings"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:background="@drawable/gear"/>

</RelativeLayout>

添加视频和扩充上述布局的代码：

@Override
    public void onResume() {
        super.onResume();    

        RelativeLayout.LayoutParams relativeLayoutParams =
                new RelativeLayout.LayoutParams(
                        RelativeLayout.LayoutParams.WRAP_CONTENT,
                        RelativeLayout.LayoutParams.WRAP_CONTENT);

        mv = new MjpegView(this);
        setContentView(mv);

        LayoutInflater inflater = getLayoutInflater();
        getWindow().addContentView(inflater.inflate(R.layout.screen2, null), relativeLayoutParams);

感谢您的帮助！

编辑：这是我目前正在使用的内容。当我触摸屏幕时，为什么我的代码没有进入触摸事件？

LayoutInflater inflater = getLayoutInflater();
        control_buttons = inflater.inflate(R.layout.screen2, null);

        control_buttons.setOnTouchListener(new View.OnTouchListener() {
            boolean gone = true;

            @Override
            public boolean onTouch(View v, MotionEvent event) {

                System.out.println("In OnTouch");

                if ( (event.getAction() == MotionEvent.ACTION_DOWN) && (gone == true) ){

                    getWindow().addContentView(control_buttons, relativeLayoutParams);

                    gone = false;
                    return true;
                }

                else if ((event.getAction() == MotionEvent.ACTION_DOWN) && (gone == false)) {
                    v.setVisibility(View.GONE);
                    gone = true;
                    return true;
                }
                return false;
            }
        });

Answer 1

这可能对您更有效。只有在RelativeLayout中的子项是包含按钮的Buttons或GridLayouts时，这才有效。

    RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.yourId);
    relativeLayout.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if(event.getAction() == MotionEvent.ACTION_DOWN) {
                for(int i = 0; i < relativeLayout.getChildCount(); i++) {
                    if(relativeLayout.getChildAt(i) instanceof Button) {
                        Button temp = (Button) relativeLayout.getChildAt(i);
                        if(temp.getVisibility() == View.INVISIBLE) {
                            temp.setVisibility(View.VISIBLE);
                        } else {
                            temp.setVisibility(View.INVISIBLE);
                        }
                    } else if(relativeLayout.getChildAt(i) instanceof GridLayout) {
                        GridLayout temp = (GridLayout) relativeLayout.getChildAt(i);
                        for(int g = 0; g < temp.getChildCount(); g++) {
                            Button tempButton = (Button) temp.getChildAt(g);
                            if(tempButton.getVisibility() == View.INVISIBLE) {
                                tempButton.setVisibility(View.VISIBLE);
                            } else {
                                temp.setVisibility(View.INVISIBLE);
                            }
                        }
                    }
                }
            }

            return false;
        }
    });

如何为通过通货膨胀添加的布局（XML）设置onTouch？

1 个答案: