本文為大家分享了Android自定義Toast之WindowManager，供大家參考，具體內(nèi)容如下
Toast:WindowManager
三個(gè)重要的API:
相當(dāng)于布局文件中的屬性
一定要銷(xiāo)毀，否則無(wú)法退出程序。一定要移除，否則報(bào)異常
Toast：WindowManager
1) 獲取WindowManager對(duì)象
2）產(chǎn)生WindowManager.LayoutParams(并且設(shè)置參數(shù))
3）產(chǎn)生一個(gè)View
4）顯示：addView(view,mParams);
5) 隱藏：removeView(view);
6) 更新位置一：view:設(shè)置一個(gè)OnTouchListener：ACTION_DONW,ACTION_MOVE,ACTION_UP
7) 更新位置二：updateViewLayout(view,mParams)
8）寫(xiě)成AddressToast
布局文件
<TextView android:id="@+id/tv_custom_toast" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="人間仙境" android:drawableLeft="@drawable/address" android:gravity="center_vertical" android:drawablePadding="5dp" android:padding="10dp" />
封裝的工具類(lèi)
public class AddressToast { private WindowManager mWm; private WindowManager.LayoutParams mParams; private Context mContext; private View mV; public AddressToast(Context context){ this.mContext = context; // 1 獲取WindowManger 對(duì)象 mWm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); // 2 產(chǎn)生LayoutParams mParams = new WindowManager.LayoutParams(); // 3 設(shè)置相關(guān)參數(shù) mParams.width=WindowManager.LayoutParams.WRAP_CONTENT; mParams.height=WindowManager.LayoutParams.WRAP_CONTENT; mParams.type = WindowManager.LayoutParams.TYPE_PRIORITY_PHONE; // params.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON // | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE // | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; mParams.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE; } //顯示文本 public void show(String msg){ // 4 產(chǎn)生一個(gè)View mV = View.inflate(mContext, R.layout.view_toast, null); // 5 WindowManager:addView(view,params); mWm.addView(mV, mParams); } public void hide() { if (mV != null) { if (mV.getParent() != null) { mWm.removeView(mV); } mV = null; } }}調(diào)用工具類(lèi)的邏輯:
public void clickMe2(View v) { mToast = new AddressToast(this); mToast.show("好迪真好大家好才是...."); } public void clickMe3(View v) { mToast.hide(); } //onPause()一定要執(zhí)行，否則報(bào)錯(cuò) @Override protected void onPause() { super.onPause(); //remove if(mV!=null){ if(mV.getParent()!=null){ mWm.removeView(mV); } mV=null; } }對(duì)產(chǎn)生的view設(shè)置接觸監(jiān)聽(tīng)事件
剛剛的彈出的window還不能移動(dòng)，可設(shè)置接觸添加mv.setOnTouchListener(this)并實(shí)現(xiàn)接口OnTouchListener中的onTouch方法：
@Override public boolean onTouch(View v, MotionEvent event) { // getX是獲取以widget左上角為坐標(biāo)原點(diǎn)計(jì)算的Ｘ軸坐標(biāo)值 // getRawX 獲取的是以屏幕左上角為坐標(biāo)原點(diǎn)計(jì)算的Ｘ軸坐標(biāo)值 int action = event.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: // Log.d("example", "ACTION_DOWN"); mDownX = event.getRawX(); mDownY = event.getRawY(); break; case MotionEvent.ACTION_MOVE: // Log.d("example", "ACTION_MOVE"); float moveX = event.getRawX(); float moveY = event.getRawY(); // x int dx = (int) (moveX - mDownX + 0.5f); // 0.5f 四舍五入 (int)4.1 4 int dy = (int) (moveY - mDownY + 0.5f); Log.d("example", "dx=" + dx); mParams.x += dx; mParams.y += dy; //7.更新位置二 mWm.updateViewLayout(mV, mParams); // 重新給按下去點(diǎn)賦值 mDownX = moveX; mDownY = moveY; break; case MotionEvent.ACTION_UP: // Log.d("example", "ACTION_UP"); break; default: break; } return false; }}以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持武林網(wǎng)。
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