浅析Android中常见三种弹框在项目中的应用

public class MyDialog extends Dialog implements android.view.View.OnClickListener {  private Context mContext;  private String mTitle;  private String mDetail;  private TextView mTextTitle;  private TextView mTextDetail;  private TextView mButtonYes;  private TextView mButtonNo;  private onClickInterface mOnclClickInterface;  public MyDialog(Context context, String title, String detail) {    super(context, R.style.MyDialogStyle);    this.mContext = context;    this.mTitle = title;    this.mDetail = detail;  }  @Override  protected void onCreate(Bundle savedInstanceState) {    // TODO Auto-generated method stub    super.onCreate(savedInstanceState);    initView();  }  private void initView() {    LayoutInflater inflater = LayoutInflater.from(mContext);    View view = inflater.inflate(R.layout.layout_dialog, null);    setContentView(view);    mButtonYes = (TextView) view.findViewById(R.id.dialog_yes);    mButtonNo = (TextView) view.findViewById(R.id.dialog_no);    mTextTitle = (TextView) view.findViewById(R.id.dialog_title);    mTextDetail = (TextView) view.findViewById(R.id.dialog_detail);    mTextTitle.setText(mTitle);    mTextDetail.setText(mDetail);    mButtonYes.setOnClickListener(this);    mButtonNo.setOnClickListener(this);  }  public interface onClickInterface {    public void clickYes();    public void clickNo();  }  public void setOnClickInterface(onClickInterface onclClickInterface) {    this.mOnclClickInterface = onclClickInterface;  }  @Override  public void onClick(View v) {    switch (v.getId()) {      case R.id.dialog_yes:        mOnclClickInterface.clickYes();        break;      case R.id.dialog_no:        mOnclClickInterface.clickNo();        break;      default:        break;    }  }}

<style name="MyDialogStyle">  <item name="android:windowBackground">@android:color/transparent</item> <!--设置dialog的背景-->  <item name="android:windowFrame">@null</item> <!--Dialog的windowFrame框为无-->  <item name="android:windowNoTitle">true</item> <!--是否有title-->  <item name="android:windowIsFloating">true</item> <!--是否浮现在activity之上-->  <item name="android:windowIsTranslucent">false</item> <!--是否半透明-->  <item name="android:windowContentOverlay">@null</item> <!--对话框是否有遮盖，这个不设置的话，可能会出现边框黑线-->  <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item> <!--动画-->  <item name="android:backgroundDimEnabled">true</item> <!-- 背景是否模糊显示--></style>

public class MyWindow {  private Context mContext;  private WindowManager mwinWindowManager;  private View mView;  private static boolean isShow = false;  public MyWindow(Context context) {   mContext = context.getApplicationContext();  }  public void showMyWindow() {   if (isShow) {     return;   }   mwinWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);   //设置WindowManager.LayoutParams的属性   WindowManager.LayoutParams params = new WindowManager.LayoutParams();   //类型   params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;   //flags   //如果设置了WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE，弹出的View没焦点，收不到Back键的事件   //当按Back、Home键时，背景应用退出，弹出的view就可以悬浮在桌面了。   params.flags = WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;   params.format = PixelFormat.TRANSLUCENT;   params.width = LayoutParams.MATCH_PARENT;   params.height = LayoutParams.MATCH_PARENT;   params.gravity = Gravity.CENTER;   //初始化View   mView = initView(mContext);   //点击back键，关闭window   mView.setOnKeyListener(new View.OnKeyListener() {     @Override     public boolean onKey(View v, int keyCode, KeyEvent event) {      Log.d("wxx", "onKey");      switch (keyCode) {      case KeyEvent.KEYCODE_BACK:        Log.d("wxx", "onKey BACK");        hideMyWindow();        return true;      default:      return false;      }     }   });   mwinWindowManager.addView(mView, params);   isShow = true;  }  private View initView(Context context) {   LayoutInflater inflater = LayoutInflater.from(context);   View view = inflater.inflate(R.layout.layout_window, null);   Button btnYes = (Button) view.findViewById(R.id.window_yes);   btnYes.setOnClickListener(new View.OnClickListener() {     @Override     public void onClick(View v) {      Toast.makeText(mContext, "Window yes!", Toast.LENGTH_LONG).show();      hideMyWindow();     }   });   Button btnNO = (Button) view.findViewById(R.id.window_no);   btnNO.setOnClickListener(new View.OnClickListener() {     @Override     public void onClick(View v) {      Toast.makeText(mContext, "Window No!", Toast.LENGTH_LONG).show();      hideMyWindow();     }   });       //点击window窗口外围，关闭window   final View wView = view.findViewById(R.id.view_layout);   view.setOnTouchListener(new View.OnTouchListener() {     @Override     public boolean onTouch(View v, MotionEvent event) {      int x = (int) event.getX();      int y = (int) event.getY();      Rect rect = new Rect();      wView.getGlobalVisibleRect(rect);      if (!rect.contains(x, y)) {        hideMyWindow();      }      return false;     }   });   return view;  }  public void hideMyWindow() {   if (isShow && mView != null) {     mwinWindowManager.removeView(mView);     isShow = false;   }  }}

public class MyActivity extends Activity {  @Override  protected void onCreate(Bundle savedInstanceState) {   // TODO Auto-generated method stub   super.onCreate(savedInstanceState);   setContentView(R.layout.layout_activity);  }  @Override  public boolean onTouchEvent(MotionEvent event) {   this.finish();   return true;  }  public void YesButton(View v) {   this.finish();   Toast.makeText(getApplicationContext(), "Yes, Hunman is Activity", Toast.LENGTH_LONG).show();  }  public void NoButton(View v) {   this.finish();   Toast.makeText(getApplicationContext(), "No, Hunman is not Activity", Toast.LENGTH_LONG).show();  }}

<activity  android:name="com.wuxianxi.hunman.smallwindows.MyActivity"  android:theme="@style/MyActivityStyle" ></activity><style name="MyActivityStyle">  <item name="android:windowBackground">@android:color/transparent</item> <!--设置dialog的背景-->  <item name="android:windowFrame">@null</item> <!--Dialog的windowFrame框为无-->  <item name="android:windowNoTitle">true</item> <!--是否有title-->  <item name="android:windowIsFloating">true</item> <!--是否浮现在activity之上-->  <item name="android:windowIsTranslucent">true</item> <!--是否半透明-->  <item name="android:windowContentOverlay">@null</item> <!--对话框是否有遮盖，这个不设置的话，可能会出现边框黑线-->  <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item> <!--动画-->  <item name="android:backgroundDimEnabled">true</item> <!-- 背景是否模糊显示--></style>

 @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    /** 设置宽度为屏幕的0.9*/    WindowManager windowManager = getWindowManager();    /* 获取屏幕宽、高 */    Display display = windowManager.getDefaultDisplay();    /* 获取对话框当前的参数值 */    WindowManager.LayoutParams p = getWindow().getAttributes();    /* 宽度设置为屏幕的0.9 */    p.width = (int) (display.getWidth() * 0.9);    /* 设置透明度,0.0为完全透明，1.0为完全不透明 */    p.alpha = 0.95f;    /* 设置布局参数 */    getWindow().setAttributes(p);//    getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT,//        ViewGroup.LayoutParams.WRAP_CONTENT);    /* 设置点击弹框外部不可消失 */    setFinishOnTouchOutside(false);  }

public class MainActivity extends ActionBarActivity implements OnClickListener {  private Button btnWindow;  private Button btnDialog;  private Button btnActivity;  @Override  protected void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.activity_main);   initView();  }  private void initView() {   btnWindow = (Button) findViewById(R.id.btn_window);   btnDialog = (Button) findViewById(R.id.btn_dialog);   btnActivity = (Button) findViewById(R.id.btn_activity);   btnWindow.setOnClickListener(this);   btnDialog.setOnClickListener(this);   btnActivity.setOnClickListener(this);  }  @Override  public void onClick(View v) {   switch (v.getId()) {   case R.id.btn_window:     MyWindow myWindow = new MyWindow(this);     myWindow.showMyWindow();     break;   case R.id.btn_dialog:     //注意下面第一个参数不能为getApplicationContext()，而应该是Activity, 因为办有activity才能添加窗口     final MyDialog dialog = new MyDialog(MainActivity.this, "Hunman - Dialog", "Hunman is a Dialog/nYes or No!");     dialog.show();     dialog.setOnClickInterface(new MyDialog.onClickInterface() {      @Override      public void clickYes() {        dialog.dismiss();        Toast.makeText(getApplicationContext(), "Yes, Hunman is Dialog", Toast.LENGTH_LONG).show();      }      @Override      public void clickNo() {        dialog.dismiss();        Toast.makeText(getApplicationContext(), "Yes, Hunman is not Dialog", Toast.LENGTH_LONG).show();      }     });     break;   case R.id.btn_activity:     Intent intent3 = new Intent(MainActivity.this, MyActivity.class);     startActivity(intent3);     break;   default:     break;   }  }}