Android TelephonyManager 不能与 android 工作室模拟器一起使用?
Android TelephonyManager doesn't work with android studio simulator?
我正在使用这个简单的代码来检索一些 phone 设备数据,但出于某种原因,我在模拟器上打开应用程序时,它会弹出一条消息,说 "Unfortunately *APP NAME* has closed"
然后它关闭应用程序。
这是我使用的代码:
TelephonyManager tm=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String IMEINumber=tm.getDeviceId();
我编写该代码只是为了测试 Telephonymanager
方法,但除以下内容外没有任何效果:
"getPhoneType();"
有什么问题吗?也许是因为我在 android 工作室模拟器上运行它?
它说的问题:getDeviceId: Neither user 10058 nor current process has android.permission.READ_PHONE_STATE
虽然我在清单中添加了权限:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
(申请部分以上)
感谢您的帮助
你是 运行 Android M
吗?如果是这样,这是因为在 manifest
中声明 permissions
是不够的。对于某些 permissions
,您必须在 run-time
中明确询问用户:
为 Run time Permission
检查此 Link。
代码段。
Define this Globally
in your Activity
.
private static final int PERMISSION_REQUEST_CODE = 1;
Do this stuff in onCreate
.
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(TestingActivity.this,
Manifest.permission.READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(TestingActivity.this,
Manifest.permission.READ_PHONE_STATE)) {
// Show an expanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(TestingActivity.this,
new String[]{Manifest.permission.READ_PHONE_STATE},
PERMISSION_REQUEST_CODE);
// MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
Finally overrride onRequestPermissionsResult
.
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_CODE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay!
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
我正在使用这个简单的代码来检索一些 phone 设备数据,但出于某种原因,我在模拟器上打开应用程序时,它会弹出一条消息,说 "Unfortunately *APP NAME* has closed"
然后它关闭应用程序。
这是我使用的代码:
TelephonyManager tm=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String IMEINumber=tm.getDeviceId();
我编写该代码只是为了测试 Telephonymanager
方法,但除以下内容外没有任何效果:
"getPhoneType();"
有什么问题吗?也许是因为我在 android 工作室模拟器上运行它?
它说的问题:getDeviceId: Neither user 10058 nor current process has android.permission.READ_PHONE_STATE
虽然我在清单中添加了权限:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
(申请部分以上)
感谢您的帮助
你是 运行 Android M
吗?如果是这样,这是因为在 manifest
中声明 permissions
是不够的。对于某些 permissions
,您必须在 run-time
中明确询问用户:
为 Run time Permission
检查此 Link。
代码段。
Define this
Globally
in yourActivity
.
private static final int PERMISSION_REQUEST_CODE = 1;
Do this stuff in
onCreate
.
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(TestingActivity.this,
Manifest.permission.READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(TestingActivity.this,
Manifest.permission.READ_PHONE_STATE)) {
// Show an expanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(TestingActivity.this,
new String[]{Manifest.permission.READ_PHONE_STATE},
PERMISSION_REQUEST_CODE);
// MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
Finally
overrride onRequestPermissionsResult
.
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_CODE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay!
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}