Android ApplicationAndroid基础
  • ContextCompact.checkSelfPermission 检查是否已有某个权限
  • ActivityCompat.requestPermissions() 权限请求
  • onRequestPermissionResult() 权限请求后的回调
  • ActivityCompat.shouldShowRequestPermissionRationale 可以给用户展示的一个权限请求来的作用，在权限被用户拒绝的情况才会出现

#####危险权限：

  • CALENDAR
  • CAMERA
  • CONTACTS
  • LOCATION
  • MICROPHONE
  • PHONE
  • SENSORS
  • SMS
  • STORAGE

#####详情：
详情
#####简单的权限请求demo

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.bn_main).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                callPhone();//模拟打电话
            }
        });
    }
    private void callPhone(){
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE)!= PackageManager.PERMISSION_GRANTED){
            //权限请求未被同意
            ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.CALL_PHONE},1);
        }else {
            //权限请求被同意
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode){
            case 1://请求的权限码
                if (grantResults[0]==PackageManager.PERMISSION_GRANTED){
                //权限被同意
                }else {
                //权限被拒绝 提示用戶沒有權限

                }
                break;
        }
    }
}

#####封装：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/**
 * 檢查是否由權限
 * */
private Boolean hasPermission(String ... permissions){
    for(String permission:permissions){
        if (ContextCompat.checkSelfPermission(this,permission)!= PackageManager.PERMISSION_GRANTED){
            return false;
        }
    }
    return true;
    }
    /**
     * 權限請求
     * */
    private void requestPermissions(int code,String ... permissions){
            ActivityCompat.requestPermissions(this,permissions,code);
    }

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

    switch (requestCode){
        case Constants.CALL_CODE:

            break;
    }
}