PopupWindow踩过的坑

PopupWindow是Android上自定义的弹出界面，方便用户的自定义样式。

点进popupwindow的源码中你会看到有这样一个构造函数的，里面的参数分别是（引用的布局即显示的view，宽，高，焦点）focusable为是否可以获得焦点，这是一个很重要的参数，也可以通过

public void setFocusable(boolean focusable) {    throw new RuntimeException("Stub!");}

来设置焦点。如果将focusable设为false则popupwindow没有了焦点在其上面进行不了点击操作，如果为true则可以对其所有的触屏和物理按键都有PopupWindows处理。如果PopupWindow中有输入操作的话（如editor），focusable要为true。

public PopupWindow(View contentView, int width, int height, boolean focusable) {    throw new RuntimeException("Stub!");}

注释：点击popupwindow主要布局（one）之外的部分窗口关闭，

                广播部分可以不看主要是发送消息注销登录；

创建对话框方法dialog

    protected void dialog() {

        View popuviewView=View.inflate(this, R.layout.out_popup, null);

        View popuone=popuviewView.findViewById(R.id.one);

        final LinearLayout outLayout=(LinearLayout) popuviewView.findViewById(R.id.out);

    final PopupWindow popupWindow=new PopupWindow(popuviewView,ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

    //取消退出(关闭对话框)

    popup_qx=(Button) popuviewView.findViewById(R.id.pop_quxiao);

    popup_qx.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    popup_x=(ImageView) popuviewView.findViewById(R.id.out_popup_x);

    popup_x.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    //确认退出(退出登录)

    popup_qd=(Button) popuviewView.findViewById(R.id.pop_queding);

    popup_qd.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            Toast.makeText(getApplication(), "quedeing", Toast.LENGTH_SHORT).show();

            Intent loginIntent=new Intent(getApplication(), LoginActivity.class);

            startActivity(loginIntent);

            popupWindow.dismiss();

            /**

             * 通过广播（BroadcastReceiver）注销登录

             * 1.点击退出按钮向MianActivity发送广播

             * 2.关闭当前的acticity;

             */

            Intent mainIntent=new Intent();

            mainIntent.setAction("com.anxun.bqbh.activity");//添加action属性

            mainIntent.putExtra("bqbh", "finish");

            sendBroadcast(mainIntent);//发送消息（接收方在MianActivity到登录界面）

            SetActivity.this.finish();//关闭Setactivity

        }

    });

//    popupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.ic_launcher));

     ColorDrawable dw = new ColorDrawable(-00000);

     popupWindow.setBackgroundDrawable(dw);

     popuone.setFocusable(true);

     popupWindow.setOutsideTouchable(false);

    popupWindow.showAtLocation(setLayout, Gravity.CENTER, 0, 0);

//    popupWindow.showAtLocation(activity.getWindow().getDecorView(), Gravity.CENTER, 0, 0);

    popuone.setOnTouchListener(new OnTouchListener() {

        @Override

        public boolean onTouch(View v, MotionEvent event) {

            // TODO Auto-generated method stub

            //按下

            if (event.getAction()==MotionEvent.ACTION_DOWN) {

                outLayout.setEnabled(false);//不可激活

                Toast.makeText(getApplication(), "按下", Toast.LENGTH_SHORT).show();

            }

            //抬起

            if (event.getAction()==MotionEvent.ACTION_UP) {

                outLayout.setEnabled(true);//可激活

                Toast.makeText(getApplication(), "抬起", Toast.LENGTH_SHORT).show();

            }

            return true;

        }

    });

    outLayout.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    }

out_popup.xml布局

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="#b0000000"

    >

     <LinearLayout 

        android:id="@+id/out"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="#fff"

        android:orientation="horizontal">

    </LinearLayout>

    <LinearLayout

        android:id="@+id/one"

        android:layout_centerInParent="true"

        android:layout_width="300dp"

        android:layout_height="180dp"

        android:background="@drawable/out_shape"

        android:gravity="center_horizontal"

        android:orientation="vertical" >

        <RelativeLayout

            android:layout_width="match_parent"

            android:layout_height="40dp"

            android:background="@drawable/tixingkuang" >

            <TextView

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_centerInParent="true"

                android:text="温馨提示"

                android:textColor="#333333"

                android:textSize="17sp" />

            <ImageView

                android:id="@+id/out_popup_x"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentRight="true"

                android:layout_centerVertical="true"

                android:layout_marginRight="20dp"

                android:src="@drawable/x" />

        </RelativeLayout>

        <RelativeLayout

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            >

            <TextView

                android:id="@+id/textone"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_centerHorizontal="true"

                android:gravity="center"

                android:text="您确定要退出登录吗"

                android:layout_marginTop="10dp"

                android:textColor="#333333"

                android:textSize="17sp" />

            <RelativeLayout

                android:layout_centerHorizontal="true"

                android:layout_below="@id/textone" 

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                >

            <!-- 取消按钮 -->

            <Button

                android:id="@+id/pop_quxiao"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentBottom="true"

                android:layout_marginBottom="23dp"

                android:layout_alignParentLeft="true"

                android:layout_marginLeft="16dp"

                android:background="@drawable/tanchu_qx" />

            <!-- 确定按钮 -->

            <Button

                android:id="@+id/pop_queding"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentBottom="true"

                android:layout_marginBottom="23dp"

                android:layout_alignParentRight="true"

                android:layout_marginRight="16dp"

                android:background="@drawable/tanchu_q" />

           </RelativeLayout>

        </RelativeLayout>

    </LinearLayout>

</RelativeLayout>

注释：点击popupwindow主要布局（one）之外的部分窗口关闭，

                广播部分可以不看主要是发送消息注销登录；

创建对话框方法dialog

    protected void dialog() {

        View popuviewView=View.inflate(this, R.layout.out_popup, null);

        View popuone=popuviewView.findViewById(R.id.one);

        final LinearLayout outLayout=(LinearLayout) popuviewView.findViewById(R.id.out);

    final PopupWindow popupWindow=new PopupWindow(popuviewView,ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

    //取消退出(关闭对话框)

    popup_qx=(Button) popuviewView.findViewById(R.id.pop_quxiao);

    popup_qx.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    popup_x=(ImageView) popuviewView.findViewById(R.id.out_popup_x);

    popup_x.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    //确认退出(退出登录)

    popup_qd=(Button) popuviewView.findViewById(R.id.pop_queding);

    popup_qd.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            Toast.makeText(getApplication(), "quedeing", Toast.LENGTH_SHORT).show();

            Intent loginIntent=new Intent(getApplication(), LoginActivity.class);

            startActivity(loginIntent);

            popupWindow.dismiss();

            /**

             * 通过广播（BroadcastReceiver）注销登录

             * 1.点击退出按钮向MianActivity发送广播

             * 2.关闭当前的acticity;

             */

            Intent mainIntent=new Intent();

            mainIntent.setAction("com.anxun.bqbh.activity");//添加action属性

            mainIntent.putExtra("bqbh", "finish");

            sendBroadcast(mainIntent);//发送消息（接收方在MianActivity到登录界面）

            SetActivity.this.finish();//关闭Setactivity

        }

    });

//    popupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.ic_launcher));

     ColorDrawable dw = new ColorDrawable(-00000);

     popupWindow.setBackgroundDrawable(dw);

     popuone.setFocusable(true);

     popupWindow.setOutsideTouchable(false);

    popupWindow.showAtLocation(setLayout, Gravity.CENTER, 0, 0);

//    popupWindow.showAtLocation(activity.getWindow().getDecorView(), Gravity.CENTER, 0, 0);

    popuone.setOnTouchListener(new OnTouchListener() {

        @Override

        public boolean onTouch(View v, MotionEvent event) {

            // TODO Auto-generated method stub

            //按下

            if (event.getAction()==MotionEvent.ACTION_DOWN) {

                outLayout.setEnabled(false);//不可激活

                Toast.makeText(getApplication(), "按下", Toast.LENGTH_SHORT).show();

            }

            //抬起

            if (event.getAction()==MotionEvent.ACTION_UP) {

                outLayout.setEnabled(true);//可激活

                Toast.makeText(getApplication(), "抬起", Toast.LENGTH_SHORT).show();

            }

            return true;

        }

    });

    outLayout.setOnClickListener(new OnClickListener() {

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            popupWindow.dismiss();

        }

    });

    }

out_popup.xml布局

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="#b0000000"

    >

     <LinearLayout 

        android:id="@+id/out"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="#fff"

        android:orientation="horizontal">

    </LinearLayout>

    <LinearLayout

        android:id="@+id/one"

        android:layout_centerInParent="true"

        android:layout_width="300dp"

        android:layout_height="180dp"

        android:background="@drawable/out_shape"

        android:gravity="center_horizontal"

        android:orientation="vertical" >

        <RelativeLayout

            android:layout_width="match_parent"

            android:layout_height="40dp"

            android:background="@drawable/tixingkuang" >

            <TextView

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_centerInParent="true"

                android:text="温馨提示"

                android:textColor="#333333"

                android:textSize="17sp" />

            <ImageView

                android:id="@+id/out_popup_x"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentRight="true"

                android:layout_centerVertical="true"

                android:layout_marginRight="20dp"

                android:src="@drawable/x" />

        </RelativeLayout>

        <RelativeLayout

            android:layout_width="wrap_content"

            android:layout_height="match_parent"

            >

            <TextView

                android:id="@+id/textone"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_centerHorizontal="true"

                android:gravity="center"

                android:text="您确定要退出登录吗"

                android:layout_marginTop="10dp"

                android:textColor="#333333"

                android:textSize="17sp" />

            <RelativeLayout

                android:layout_centerHorizontal="true"

                android:layout_below="@id/textone" 

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                >

            <!-- 取消按钮 -->

            <Button

                android:id="@+id/pop_quxiao"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentBottom="true"

                android:layout_marginBottom="23dp"

                android:layout_alignParentLeft="true"

                android:layout_marginLeft="16dp"

                android:background="@drawable/tanchu_qx" />

            <!-- 确定按钮 -->

            <Button

                android:id="@+id/pop_queding"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:layout_alignParentBottom="true"

                android:layout_marginBottom="23dp"

                android:layout_alignParentRight="true"

                android:layout_marginRight="16dp"

                android:background="@drawable/tanchu_q" />

           </RelativeLayout>

        </RelativeLayout>

    </LinearLayout>

</RelativeLayout>