我想在我的应用程序中。如果已授予权限，则不会在android中显示对话框
这是我的代码
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.button:
requestContactsPermissions();
break;
case R.id.button1:
// requestCameraPermissions();
Toast.makeText(mcontext, "Hello", Toast.LENGTH_LONG).show();
break;
}
}
private void requestContactsPermissions() {
boolean requestPermission = PersimissionTest.requestContactsPermissions(this);
if (requestPermission == true) {
ActivityCompat.requestPermissions(this, PERMISSIONS_CONTACTS, REQUEST_ID);
} else {
ActivityCompat.requestPermissions(this, PERMISSIONS_CONTACTS, REQUEST_ID);
}
}
@覆盖 公共(public)无效onRequestPermissionsResult(int requestCode，字符串权限[]，int [] grantResults){
if (requestCode == REQUEST_ID) {
if (PersimissionTest.verifyPermissions(grantResults)) {
Toast.makeText(mcontext, "Contacts permissions granted.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(mcontext, "Contacts permissions were not granted.", Toast.LENGTH_LONG).show();
}
} else {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
最佳答案
像这样请求权限，如果已经授予权限，则插入联系人，否则它将请求权限
private void insertDummyContactWrapper(String mStringPhoneContactName, String mStringPhoneContactNumber) {
boolean hasWriteContactsPermission = ActivityCompat.shouldShowRequestPermissionRationale(this, android.Manifest.permission.WRITE_CONTACTS);
if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.WRITE_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(SwipableHomeActivity.this, new String[]{android.Manifest.permission.WRITE_CONTACTS}, CONSTANTS.MY_PERMISSIONS_REQUEST_WRITE_CONTACTS);
return;
}
//Insert Contact
}
获取像这样的权限结果
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case CONSTANTS.MY_PERMISSIONS_REQUEST_WRITE_CONTACTS:
if (grantResults != null && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
ReadPhoneContacts(getApplicationContext(), mStringPhoneContactName, mStringPhoneContactNumber);
} else {
Toast.makeText(getApplicationContext(), "Permission Denied", Toast.LENGTH_SHORT).show();
}
break;
}
}
检查我已在您的问题中实现了这一点
public static boolean requestContactsPermissions(Activity activity) {
boolean requestPermission;
if (ContextCompat.checkSelfPermission(activity, android.Manifest.permission.WRITE_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
requestPermission = true;
}else{
requestPermission = false;
}
return requestPermission;
}
public static boolean requestCameraPermissions(Activity activity) {
boolean requestPermission;
if (ContextCompat.checkSelfPermission(activity, android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED){
requestPermission = true;
} else {
requestPermission = false;
}
return requestPermission;
}
用这个改变你的类(class)
public class MainActivity extends AppCompatActivity implements
OnRequestPermissionsResultCallback, OnClickListener{
public static final String TAG = "PermissionActivity";
private View mLayout;
Button mButtonCheckPermission = null;
private static final int REQUEST_CONTACTS = 1;
private static String[] PERMISSIONS_CONTACT = {Manifest.permission.READ_CONTACTS,
Manifest.permission.WRITE_CONTACTS};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
mButtonCheckPermission = (Button) findViewById(R.id.button_check_permissions);
mButtonCheckPermission.setOnClickListener(this);
mLayout = findViewById(R.id.sample_main_layout);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_check_permissions:
requestContactsPermissions();
break;
default:
break;
}
}
private void requestContactsPermissions() {
boolean requestPermission = PermissionUtil.requestContactsPermissions(this);
if (requestPermission == true){
Log.i(TAG,
"Displaying contacts permission rationale to provide additional context.");
// Display a SnackBar with an explanation and a button to trigger the request.
if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.WRITE_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
Snackbar.make(mLayout, R.string.permission_contacts_rationale,
Snackbar.LENGTH_INDEFINITE)
.setAction(R.string.ok, new View.OnClickListener() {
@Override
public void onClick(View view) {
ActivityCompat.requestPermissions(MainActivity.this, PERMISSIONS_CONTACT,
REQUEST_CONTACTS);
}
})
.show();
}else{
Snackbar.make(mLayout, R.string.permision_available_contacts,
Snackbar.LENGTH_LONG)
.show();
}
}
else {
ActivityCompat.requestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS);
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
if (requestCode == REQUEST_CONTACTS) {
Log.i(TAG, "Received response for contact permissions request.");
// We have requested multiple permissions for contacts, so all of them need to be
// checked.
if (PermissionUtil.verifyPermissions(grantResults)) {
// All required permissions have been granted, display contacts fragment.
Snackbar.make(mLayout, R.string.permision_available_contacts,
Snackbar.LENGTH_LONG)
.show();
} else {
Log.i(TAG, "Contacts permissions were NOT granted.");
Snackbar.make(mLayout, R.string.permissions_not_granted,
Snackbar.LENGTH_LONG)
.show();
}
} else {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}}
关于android - 用户 Android M 在应用程序中授予的权限，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37650908/