简单的弹窗应用（一）--PopupWindow

来源：互联网发布：收纳知乎编辑：程序博客网时间：2024/06/14 16:07

popupWindow就是弹窗
首先在布局写个按钮，点击事件里进行弹窗

tv.setOnClickListener(new OnClickListener() {            private PopupWindow popupWindow;            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                //布局加载器                LayoutInflater inflater = LayoutInflater.from(MainActivity.this);                View view = inflater.inflate(R.layout.popitem, null);                //加载布局内组件                LinearLayout llist = (LinearLayout) view.findViewById(R.id.llist);                LinearLayout lgrip = (LinearLayout) view.findViewById(R.id.lgrip);                //设置listview组件点击事件                llist.setOnClickListener(new OnClickListener() {                    @Override                    public void onClick(View v) {                        // TODO Auto-generated method stub                        //跳转                        Intent intent = new Intent(MainActivity.this,ListActivity.class);                        startActivity(intent);                        //弹窗消失                        popupWindow.dismiss();                    }                });                //设置gridview组件点击事件                lgrip.setOnClickListener(new OnClickListener() {                    @Override                    public void onClick(View v) {                        // TODO Auto-generated method stub                        //跳转                        Intent intent = new Intent(MainActivity.this,GripActivity.class);                        startActivity(intent);                        //弹窗消失                        popupWindow.dismiss();                    }                });                //设置弹窗大小和布局                popupWindow = new PopupWindow(view, 200, 280);                //点击外部消失弹窗                popupWindow.setBackgroundDrawable(new ColorDrawable());                popupWindow.setOutsideTouchable(true);                //显示在哪个布局下,放父组件                popupWindow.showAsDropDown(tv);            }        });

然后来看一下popupwindow的布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <LinearLayout         android:layout_height="wrap_content"        android:layout_width="match_parent"        android:id="@+id/llist"        android:orientation="horizontal"        android:padding="10dp"        android:gravity="center"        >        <TextView             android:layout_height="wrap_content"            android:layout_width="wrap_content"            android:text="listview"            />     </LinearLayout>    <LinearLayout         android:layout_height="wrap_content"        android:layout_width="match_parent"        android:id="@+id/lgrip"        android:orientation="horizontal"        android:padding="10dp"        android:gravity="center"        >        <TextView             android:layout_height="wrap_content"            android:layout_width="wrap_content"            android:text="Gridview"            />    </LinearLayout></LinearLayout>

这样就可以弹窗了！！！

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