前言
在寫這篇之前我說說我的感受，在之前有用到Dialog的地方，我真的很鬱悶，各種不適配，功能實現起來很是麻煩，那麼當我接觸到WindowManager後，我就心想，我要自己弄一套Dialog，來實現我想要的功能。其實我們的大部分提示窗口只要依附在Activity上就可以了，我們得到一塊窗體後，我們就可以在窗體上進行繪製我們想要的效果。
封裝WindowManager
1.初始化我們的WindowManager.LayoutParams
/**
* 全屏模式
*
* @param context
* @param bg
*/
public MyPopWindow(Activity context, int bg, int animatorModel) {
activity = context;
mBackGroundColor = bg;
mWindowManager = context.getWindowManager();
lp = new WindowManager.LayoutParams();
lp.format = PixelFormat.RGBA_8888;
//透明狀態欄
lp.flags = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
}123456789101112131415161712345678910111213141516172.添加View，這裏注意不能重複添加
public void addView(View view) {
this.contentView = view;
if (mWindowManager == null) return;
//當View已經被加到Window上去了，那麼就不能再加
if (isAttachedToWindow(contentView) || contentView.getParent() != null) return;
mWindowManager.addView(contentView, lp);
if (contentView instanceof WindowLayout){
((WindowLayout)contentView).setPopWindow(this);
}
}1234567891012345678910反射獲得isAttachedToWindow的值
/**
* 通過反射獲取View是否AttachWindow
*
* @param view
*/
public boolean isAttachedToWindow(View view) {
try {
Class classzz = View.class;
Field field = classzz.getDeclaredField("mAttachInfo");
field.setAccessible(true);
Object mAttach = field.get(view);
return mAttach != null;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}12345678910111213141516171819123456789101112131415161718193.remove
public void removeView() {
try {
if (mWindowManager == null) return;
if (!isAttachedToWindow(contentView)) return;
mWindowManager.removeView(contentView);
} catch (Exception e) {
if (Config.IS_DEBUG_MODE) {
e.getMessage();
}
}
}1234567891011121234567891011124.回收防止window的泄露，Activity在銷燬之前要調用recycle方法
/**
* 回收
*/
public void recycle() {
activity = null;
mWindowManager = null;
}12345671234567封裝DialogWindow
1.初始化構造方法
public DialogWindow(Activity activity) {
this.context = activity;
myPopWindow = new MyPopWindow(activity);
}
public DialogWindow(Activity context, boolean isCancelable) {
this.context = context;
this.isCancelable = isCancelable;
myPopWindow = new MyPopWindow(context);
}12345678910123456789102.加載佈局
public DialogWindow loading() {
contentView = (ViewGroup) LayoutInflater.from(context).inflate(R.layout.dialog_update, null);
contentView.setOnClickListener(this);
return this;
}
public DialogWindow loading(String tip) {
contentView = (ViewGroup) LayoutInflater.from(context).inflate(R.layout.dialog_update, null);
TextView title = (TextView) contentView.findViewById(R.id.dialog_title);
title.setText(tip);
contentView.setOnClickListener(this);
return this;
}
public void setTitle(String tip) {
if (contentView == null) return;
TextView title = (TextView) contentView.findViewById(R.id.dialog_title);
title.setText(tip);
isNeedReset = true;
}
public void resetTitle() {
if (contentView == null) return;
TextView title = (TextView) contentView.findViewById(R.id.dialog_title);
title.setText(R.string.loading);
isNeedReset = false;
}
public ViewGroup loading(@LayoutRes int resId) {
contentView = (ViewGroup) LayoutInflater.from(context).inflate(resId, null);
contentView.setOnClickListener(this);
return contentView;
}1234567891011121314151617181920212223242526272829303132331234567891011121314151617181920212223242526272829303132333.show方法
/**
* 這你在show()的時候要判斷當前的狀態，
*/
public void show() {
Logger.e("tag", isShowing + "");
if (!isShowing()) {
try {
myPopWindow.removeView();
myPopWindow.addView(contentView);
isShowing = true;
} catch (Exception e) {
if (Config.IS_DEBUG_MODE) {
Log.e("Window", e.toString());
}
}
} else {
handler.removeMessages(WHAT);
dismissByUser();
show();
}
}
/**
*
*/
public void show(String tip) {
Logger.e("tag", isShowing + "");
if (!isShowing()) {
try {
if(!StringUtil.isEmpty(tip)){
setTitle(tip);
}
myPopWindow.addView(contentView);
isShowing = true;
} catch (Exception e) {
if (Config.IS_DEBUG_MODE) {
Log.e("Window", e.toString());
}
}
} else {
handler.removeMessages(WHAT);
dismissByUser();
show(tip);
}
}1234567891011121314151617181920212223242526272829303132333435363738394041424344451234567891011121314151617181920212223242526272829303132333435363738394041424344454.dismiss方法
/**
* 顯示，若果是網絡請求的話，就延遲500ms。
*/
public void dismiss() {
handler.sendEmptyMessageDelayed(WHAT, 500);
}
/**
* 用戶點擊，就立刻取消
*/
public void dismissByUser() {
if (isShowing) {
try {
myPopWindow.removeView();
// if (softReferenceListener.get()!=null){
// softReferenceListener.get().dialogDismiss();
// }
if (isNeedReset){
resetTitle();
}
isShowing = false;
} catch (Exception e) {
if (Config.IS_DEBUG_MODE) {
Log.e("Window", e.toString());
}
}
}
}123456789101112131415161718192021222324252627282912345678910111213141516171819202122232425262728295.用戶點擊處理
/**
* 用戶點擊window事件
*
* @param v
*/
@Override
public void onClick(View v) {
if (isCancelable) {
dismissByUser();
}
}123456789101112345678910116.回收防止window泄露
public void recycle() {
//先釋放Window裏面的Activity
dismissByUser();
if (myPopWindow != null) {
myPopWindow.recycle();
myPopWindow = null;
}
}1234567812345678接收back事件
/**
* 創建日期：2017/4/20 9:45
*
* @author yzz
*/
public class WindowLayout extends RelativeLayout {
private MyPopWindow popWindow;
public WindowLayout(Context context) {
super(context);
}
public WindowLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public WindowLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode()==KeyEvent.KEYCODE_BACK){
if (popWindow!=null)popWindow.removeView();
}
return super.dispatchKeyEvent(event);
}
public void setPopWindow(MyPopWindow popWindow) {
this.popWindow = popWindow;
}
}12345678910111213141516171819202122232425262728293031321234567891011121314151617181920212223242526272829303132