Android 现在将所有的权限归成了两类,一类是普通权限,一类是危险权限。普通权限指的是那些不会直 接威胁到用户的安全和隐私的权限,对于这部分权限申请,系统会自动帮我们进行授权,而不需 要用户再去手动操作了。危险权限则 表示那些可能会触及用户隐私,或者对设备安全性造成影响的权限,如获取设备联系人信息、定 位设备的地理位置等,对于这部分权限申请,必须要由用户手动点击授权才可以,否则程序就无 法使用相应的功能。
下表列出了 Android 中所有的危险权限,一共是 9 组 24 个权限。
CALENDAR
READ_CALENDAR
WRITE_CALENDAR
CAMERA
CAMERA
CONTACTS
READ_CONTACTS
WRITE_CONTACTS
GET_ACCOUNTS
LOCATION
ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION
MICROPHONE
RECORD_AUDIO
PHONE
READ_PHONE_STATE
CALL_PHONE
READ_CALL_LOG
WRITE_CALL_LOG
ADD_VOICEMAIL
USE_SIP
PROCESS_OUTGOING_CALLS
SENSORS
BODY_SENSORS
SMS
SEND_SMS
RECEIVE_SMS
READ_SMS
RECEIVE_WAP_PUSH
RECEIVE_MMS
STORAGE
READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE
在程序运行时申请权限
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button makeCall = (Button) findViewById(R.id.make_call);
makeCall.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (ContextCompat.checkSetfPermission(MainActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CALL_PHONE}, 1);
} else {
call();
}
}
});
}
private void call() {
try {
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:10086"));
startActivity(intent);
} catch (SecurityException e) {
e.printStackTrace();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case 1:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
call();
} else {
Toast.makeText(this, "You denied the permission", Toast.LENGTH_SHORT).show();
}
break;
default:
}
}
}