自定義Toast

        public static Toast TOAST;
    public static void showToast(Context context, String string) {
        if (context == null) {
            return;
        }
        makeText(context, string + "", Toast.LENGTH_SHORT);
    }
    /**
     * 顯示提示信息檩赢，如果已經(jīng)存在吕嘀，把已經(jīng)存在的關(guān)閉，重新打開(kāi)一個(gè)
     * 
     * @param context
     * @param resid
     *            文字信息資源id
     * @param duration
     *            顯示時(shí)間
     */
    public static void makeText(Context context, String resid, int duration) {
        if (TOAST != null) {
            TOAST.cancel();
            TOAST = null;
        }
        context = context.getApplicationContext();
        TOAST = new Toast(context);
        TOAST.setDuration(duration);
        addToastTextView(context, TOAST, resid);
        TOAST.show();
    }
    public static void addToastTextView(Context context, Toast toast,
            CharSequence msg) {
        TextView view = new TextView(context);
        view.setText(msg);
        view.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 15);
        view.setTextColor(Color.WHITE);
        view.setPadding(30, 30, 30, 30);
        view.setBackgroundResource(R.drawable.shape_toast_bg);
        toast.setView(view);
    }

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <!-- 填充顏色 -->
    <solid android:color="#90000000" />

   <!--  <padding
        android:bottom="7dp"
        android:left="7dp"
        android:right="7dp"
        android:top="7dp" /> -->

    <corners android:radius="4dp" />

</shape>

退出代碼

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
            if ((System.currentTimeMillis() - mExitTime) > EXIT_TIME) {
                Tools.showToast(mContext, "再按一次退出程序");
                mExitTime = System.currentTimeMillis();
            } else {
                BaseApp.getInstance().killself();
            }
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

解決Toast不消失核心代碼

    private void cancelToast() {
        if (Tools.TOAST != null) {
            Tools.TOAST.show();
            Tools.TOAST.cancel();
            Tools.TOAST = null;
        }
    }

并沒(méi)有卵用,activity onDestory方法沒(méi)執(zhí)行, 導(dǎo)致主界面異常退出,修改邏輯,殺死進(jìn)程代碼放在主界面的onDestory里 解決~

然而上面說(shuō)的在onDestory里面,測(cè)試時(shí),還是不能保證toast消失

以下代碼,測(cè)試穩(wěn)定................無(wú)副作用~

                new Thread(){
                    @Override
                    public void run() {
                        super.run();
                        Looper.prepare();
                        Tools.showToast(BaseApp.getAppContext(), "再按一次退出程序");
                        Looper.loop();
                    }
                }.start();