Android N權限問題

Question

我的測試設備上裝有Android N Developer預覽版，我正在啟動應用程序時要求運行時權限。

但不幸的是，該應用程序未顯示警告對話框來授予權限。 我正在使用以下代碼：

啟動器活動

public class LoginActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        if(checkPermissions()) {
            renderView();
        }
    }

    private boolean checkPermissions() {

        int permissionWriteStorage = ContextCompat.checkSelfPermission(this, Manifest.permission_group.STORAGE);
        int permissionPhoneState = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE);

        Log.i("permission",(permissionWriteStorage == PackageManager.PERMISSION_GRANTED) + "");
        //This prints false

        List<String> listPermissionsNeeded = new ArrayList<>();
        if (permissionWriteStorage != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission_group.STORAGE);
        }
        if (permissionPhoneState != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.READ_PHONE_STATE);
        }

        if (!listPermissionsNeeded.isEmpty()) {
            Log.i("permission", "in if");
            //I get this in the logs

            ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),REQUEST_ID_MULTIPLE_PERMISSIONS);
            return false;
        }
        return true;
    }
}

build.gradle

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 24
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId 'com.***.***'
        minSdkVersion 16
        targetSdkVersion 24
    }
}

編輯：解決方案（1/2）

通過將構建工具版本更改為24.0.1我收到有關READ_PHONE_STATE權限的警報，但沒有有關權限組STORAGE的警報。 我們是否需要分別詢問權限組的每個權限？

編輯2：解決方案（2/2）

我設法通過更換來解決它Manifest.permission_group.STORAGE與Manifest.permission.WRITE_EXTERNAL_STORAGE 。 根據文檔，您只需要確認整個小組的一項危險許可即可。

用戶只需要為每個權限組授予一次權限。 如果您的應用請求該組（應用清單中列出）中的任何其他權限，則系統會自動授予它們。

Answer 1

我不確定，但更改了構建工具的版本

android {
compileSdkVersion 24
buildToolsVersion "24.0.0"

defaultConfig {
    applicationId 'com.***.***'
    minSdkVersion 16
    targetSdkVersion 24
}

Answer 2

用戶ActivityCompat而不是ContextCompat

int permissionWriteStorage = ActivityCompat.checkSelfPermission(this, Manifest.permission_group.STORAGE);
int permissionPhoneState = ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE);

Answer 3

我知道這項技術比較麻煩，但是為什么不簡單使用呢？

您也可以實現多個權限。

void getPermission(){
    if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission_group.STORAGE) != PackageManager.PERMISSION_GRANTED) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
            ActivityCompat.requestPermissions(Final_maps.this,
                    new String[]{android.Manifest.permission_group.STORAGE, android.Manifest.permission.READ_PHONE_STATE},
                    CODE);

    }

}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) {
        case CODE:
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                setLocationEnabled();
                Toast.makeText(this, "Permission Granted!", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(this, "Permission Denied!", Toast.LENGTH_SHORT).show();
                finish();
            }
    }
}

Answer 4

如果您未實現onRequestPermissionsResult方法，則不會顯示權限警報。

Answer 5

在清單中給予許可

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

然后將代碼粘貼到“活動”中

 private void getPermission() {

    if (ContextCompat.checkSelfPermission(MapsActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) !=
            PackageManager.PERMISSION_GRANTED) {
        if (ContextCompat.checkSelfPermission(MapsActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) !=
                PackageManager.PERMISSION_GRANTED) {

            ActivityCompat.requestPermissions(MapsActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 0);
        }
    }
}

也調用此覆蓋方法

 @Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == PERMISSION_REQUEST_CODE) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED
                && grantResults[1] == PackageManager.PERMISSION_GRANTED) {


        }
    }

}