PopupWindow底部弹出-白红宇

说明:从屏幕底部弹出PopupWindow,有弹出隐藏动画效果.背景设置透明度.

效果图如下:

1.MainActivity.java 显示popwindow,宽高跟屏幕大小一样,设置一个透明度背景

public class MainActivity extends Activity {  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
  
        findViewById(R.id.button).setOnClickListener(new OnClickListener() {  
            public void onClick(View v) {  
                showPopwindow();  
            }  
        });  
  
    }  
  
    private void showPopwindow() {  
        View parent = ((ViewGroup) this.findViewById(android.R.id.content)).getChildAt(0);  
        View popView = View.inflate(this, R.layout.camera_pop_menu, null);  
  
        Button btnCamera = (Button) popView.findViewById(R.id.btn_camera_pop_camera);  
        Button btnAlbum = (Button) popView.findViewById(R.id.btn_camera_pop_album);  
        Button btnCancel = (Button) popView.findViewById(R.id.btn_camera_pop_cancel);  
  
        int width = getResources().getDisplayMetrics().widthPixels;  
        int height = getResources().getDisplayMetrics().heightPixels;  
  
        final PopupWindow popWindow = new PopupWindow(popView,width,height);  
        popWindow.setAnimationStyle(R.style.AnimBottom);  
        popWindow.setFocusable(true);  
        popWindow.setOutsideTouchable(false);// 设置允许在外点击消失  
  
        OnClickListener listener = new OnClickListener() {  
            public void onClick(View v) {  
                switch (v.getId()) {  
                case R.id.btn_camera_pop_camera:  
                      
                    break;  
                case R.id.btn_camera_pop_album:  
                      
                    break;  
                case R.id.btn_camera_pop_cancel:  
                      
                    break;  
                }  
                popWindow.dismiss();  
            }  
        };  
  
        btnCamera.setOnClickListener(listener);  
        btnAlbum.setOnClickListener(listener);  
        btnCancel.setOnClickListener(listener);  
  
        ColorDrawable dw = new ColorDrawable(0x30000000);  
        popWindow.setBackgroundDrawable(dw);  
        popWindow.showAtLocation(parent, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, 0);  
    }  
  
}  

2.camera_pop_menu.xml Popupwindow加载的布局文件

<?xml version="1.0" encoding="utf-8"?>  
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="wrap_content"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <LinearLayout  
        android:layout_width="match_parent"  
        android:layout_height="wrap_content"  
        android:layout_alignParentBottom="true"  
        android:layout_margin="10dp"  
        android:orientation="vertical" >  
  
        <Button  
            android:id="@+id/btn_camera_pop_camera"  
            style="@style/txt_camera_pop_menu"  
            android:layout_width="match_parent"  
            android:layout_height="45dp"  
            android:background="@drawable/pop_first_selector"  
            android:text="@string/camera_pop_camera"  
            android:textSize="18sp" />  
  
        <Button  
            android:id="@+id/btn_camera_pop_album"  
            style="@style/txt_camera_pop_menu"  
            android:layout_width="match_parent"  
            android:layout_height="45dp"  
            android:background="@drawable/pop_last_selector"  
            android:text="@string/camera_pop_album"  
            android:textSize="18sp" />  
  
        <Button  
            android:id="@+id/btn_camera_pop_cancel"  
            style="@style/txt_camera_pop_menu"  
            android:layout_width="match_parent"  
            android:layout_height="45dp"  
            android:layout_marginTop="10dp"  
            android:background="@drawable/pop_single_selector"  
            android:text="@string/camera_pop_cancel"  
            android:textSize="18sp" />  
    </LinearLayout>  
  
</RelativeLayout>  

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