Android Permission

<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.z.steven.xchat">
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <application ...

申请权限:

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED) {
            //申请WRITE_EXTERNAL_STORAGE权限//            
        
                ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_PHONE_STATE},CONTEXT_INCLUDE_CODE);
        }