Android自定义弹窗成效

Android的弹窗效果有很多种，就最简单而言，就可以调用一个AlertDialog弹窗显示，可是要自定义弹窗效果有以下这种方法，就我个人而言感觉挺方便的，适用性也挺广的。

首先先简单写个AlertDialog的使用

public void showDialog(){			AlertDialog dialog = new AlertDialog.Builder(this)			.setTitle("提示")			.setMessage(getResources().getString("你确定退出吗?")			.setPositiveButton("取消", new OnClickListener() {							@Override				public void onClick(DialogInterface dialog, int which) {					dialog.dismiss();				}			}).setNegativeButton("确定", new OnClickListener() {								@Override				public void onClick(DialogInterface dialog, int which) {					// TODO Auto-generated method stub									}			}).create();			dialog.show();			}		}

接下来就是自定义弹窗效果图：

下面是示例代码：

<?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="wrap_content"    android:orientation="vertical"     >    <LinearLayout android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="center_horizontal"        android:orientation="vertical"        android:layout_alignParentBottom="true"        android:id="@+id/top"        >        <TextView android:layout_width="match_parent"            android:layout_height="40.5dip"            android:text="@string/select_head"            android:layout_marginLeft="7.2dip"            android:layout_marginRight="7.2dip"            android:gravity="center"            android:textColor="#aaaaaa"            />        <Button            android:id="@+id/takephoto"            android:layout_width="match_parent"            android:layout_height="40.5dip"            android:layout_marginLeft="7.2dip"            android:layout_marginRight="7.2dip"            android:text="@string/takephoto"            android:background="@null"            android:textColor="#fc4643"             />        <Button            android:id="@+id/selectfromalbum"            android:layout_width="match_parent"            android:layout_height="40.5dip"            android:layout_marginLeft="7.2dip"            android:layout_marginRight="7.2dip"            android:text="@string/takefromalbum"            android:background="@null"            android:textColor="#fc4643"             />        <Button            android:id="@+id/cancel"            android:layout_width="match_parent"            android:layout_height="40.5dip"            android:layout_marginLeft="7.2dip"            android:layout_marginRight="7.2dip"            android:layout_marginTop="7.2dip"            android:text="@string/cancel"            android:background="@null"            android:textColor="#fc4643"             />    </LinearLayout></RelativeLayout>

public class SelectPopupWindow extends PopupWindow {	Button takePhoto;	Button selectFromAlbum;	Button cancel;	View menuView;	public SelectPopupWindow(Context ctx, OnClickListener onClickListener) {		LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);		menuView = inflater.inflate(R.layout.modify_head, null); //可以采用各种样式，自定义view		takePhoto = (Button) menuView.findViewById(R.id.takephoto);		takePhoto.setOnClickListener(onClickListener);		selectFromAlbum = (Button) menuView.findViewById(R.id.selectfromalbum);		selectFromAlbum.setOnClickListener(onClickListener);				cancel = (Button) menuView.findViewById(R.id.cancel);		cancel.setOnClickListener(new OnClickListener() {						@Override			public void onClick(View v) {				// TODO Auto-generated method stub				dismiss();			}		});				setContentView(menuView);		setWidth(LayoutParams.MATCH_PARENT);		setHeight(LayoutParams.WRAP_CONTENT);		setFocusable(true);   //弹出窗体后可点击				//setAnimationStyle(R.style.AnimBottom);   //设置动画		menuView.setOnTouchListener(new OnTouchListener() {						@Override			public boolean onTouch(View v, MotionEvent event) {				int height = menuView.findViewById(R.id.top).getTop();				Log.e("huang", " top height:"+height+" y:"+event.getY());				int y = (int) event.getY();				if(y<height){					dismiss();				}				return true;			}		});	}}

public class TestPopupWindow extends Activity {	private SelectPopupWindow popupWindow;	private ImageView image;	private Button btn, btn1;	private Uri fileUri;     			@Override	protected void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_main1);		init();	}		private void init(){		image = (ImageView) findViewById(R.id.image);		btn = (Button) findViewById(R.id.btn);		btn.setOnClickListener(onClickListener);		btn1 = (Button) findViewById(R.id.btn1);		btn1.setOnClickListener(onClickListener);			}		View.OnClickListener onClickListener = new View.OnClickListener() {				@Override		public void onClick(View v) {			switch(v.getId()){			case R.id.btn:				test();				break;			case R.id.btn1:				startActivity(new Intent(TestPopupWindow.this, TestGsonActivity.class));				break;			case R.id.takephoto:				Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);				intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);				startActivityForResult(intent, 100);				break;			case R.id.selectfromalbum:				Intent intent1 = new Intent(Intent.ACTION_PICK);				intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");				startActivityForResult(intent1, 200);				break;							}		}	};		public void test(){		popupWindow = new SelectPopupWindow(this, onClickListener);		popupWindow.showAtLocation(findViewById(R.id.main), 				Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);	}