【Android N 7.1.1】 鎖屏之上顯示Toast

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package com.android.systemuirom.keyguard;import android.content.Context;import android.view.Gravity;import android.view.WindowManager;import android.widget.Toast;public class KeyguardToast {    private static KeyguardToast sInstance;    private Toast mToast = null;    public static KeyguardToast getInstance() {        if (sInstance == null) {            sInstance = new KeyguardToast();        }        return sInstance;    }    private KeyguardToast() {        // ignore    }    public Toast makeText(Context context, CharSequence text, int duration,            boolean needOffsetPosition) {        if (mToast != null) {            mToast.cancel();            mToast = null;        }        mToast = Toast.makeText(context, text, duration);        mToast.getWindowParams().type = WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL;        mToast.getWindowParams().privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;        mToast.getWindowParams().flags |= WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;        // Toast位移位置        if (needOffsetPosition) {            // set offset position            mToast.setGravity(Gravity.CENTER, 0, -300);        }        return mToast;    }    public void cancelToast() {        if (mToast != null) {            mToast.cancel();            mToast = null;        }    }}

 

【Android N 7.1.1】 鎖屏之上顯示Toast