經常使用小米和魅族手機的小夥伴應該知道，他們兩者手機是可以把toast關閉掉的，這會讓使用者非常不爽，以至於我們很多提示只能用Dialog來實現，今天就告訴大傢伙怎麼跳過小米和魅族的限制，利用WindowManager來自定義我們自己的Toast就可以完美的跳過小米和魅族對Toast的限制。
自定義Toast程式碼如下：

public class Toast {
    private Context mContext;
    private WindowManager wm;
    private int mDuration;
    private View mNextView;
    public
 
 static final int LENGTH_SHORT = 1500;
    public static final int LENGTH_LONG = 3000;

    public Toast(Context context) {
        mContext = context.getApplicationContext();
    }

    public static Toast makeText(Context context, CharSequence text, int duration) {
        Toast result = new Toast(context);
        LayoutInflater inflate = (LayoutInflater) context.getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View v = inflate.inflate(R.layout.transient_notification, null
 
);
        TextView tv = (TextView) v.findViewById(R.id.message);
        tv.setText(text);
        result.mNextView = v;
        result.mDuration = duration;
        return result;
    }

    public static Toast makeText(Context context, int resId, int duration) throws Resources.NotFoundException {
        return
 
 makeText(context, context.getResources().getText(resId), duration);
    }

    public void show() {
        if (mNextView != null) {
            wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
            WindowManager.LayoutParams params = new WindowManager.LayoutParams();
            params.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
            params.height = WindowManager.LayoutParams.WRAP_CONTENT;
            params.width = WindowManager.LayoutParams.WRAP_CONTENT;
            params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
            params.format = PixelFormat.TRANSLUCENT;
            params.windowAnimations = R.style.Animation_Toast;
            params.y = dip2px(mContext, 64);
            params.type = WindowManager.LayoutParams.TYPE_TOAST;  
            wm.addView(mNextView, params);
            new Handler().postDelayed(new Runnable() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    if (mNextView != null) {
                        //每次顯示完後，remove調view
                        wm.removeView(mNextView);
                        mNextView = null;
                        wm = null;
                    }
                }
            }, mDuration);
        }
    }

    public static int dip2px(Context context, float dipValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dipValue * scale + 0.5f);
    }
}

上面最重要的一句就是：WindowManager.LayoutParams.TYPE_TOAST; 設定WindowManager的型別為TYPE_TOAST型別。