Java android请求调用操作的运行时权限
我有调用操作的代码,我需要声明运行时权限的最佳方法。我尝试了很多代码,但总是出错 这是我的基本代码,有什么建议可以让它在运行时使用吗 提前谢谢Java android请求调用操作的运行时权限,java,android,permissions,runtime,Java,Android,Permissions,Runtime,我有调用操作的代码,我需要声明运行时权限的最佳方法。我尝试了很多代码,但总是出错 这是我的基本代码,有什么建议可以让它在运行时使用吗 提前谢谢 public class MainActivity extends Activity { private Button button; private EditText etPhoneno; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInsta
public class MainActivity extends Activity {
private Button button;
private EditText etPhoneno;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.buttonCall);
etPhoneno = (EditText) findViewById(R.id.editText1);
// add button listener
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
String phnum = etPhoneno.getText().toString();
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + phnum));
startActivity(callIntent);
}
});
}
}在
onClick()方法中尝试此代码
if(isPermissionGranted()){
call_action();
}
现在,要调用创建单独的方法:
public void call_action(){
String phnum = etPhoneno.getText().toString();
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + phnum));
startActivity(callIntent);
}
为运行时权限检查添加以下两种方法:
public boolean isPermissionGranted() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.CALL_PHONE)
== PackageManager.PERMISSION_GRANTED) {
Log.v("TAG","Permission is granted");
return true;
} else {
Log.v("TAG","Permission is revoked");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, 1);
return false;
}
}
else { //permission is automatically granted on sdk<23 upon installation
Log.v("TAG","Permission is granted");
return true;
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case 1: {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getApplicationContext(), "Permission granted", Toast.LENGTH_SHORT).show();
call_action();
} else {
Toast.makeText(getApplicationContext(), "Permission denied", Toast.LENGTH_SHORT).show();
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
public boolean ispermissiongrated(){
如果(Build.VERSION.SDK_INT>=23){
if(checkSelfPermission(android.Manifest.permission.CALL_PHONE)
==PackageManager.权限(已授予){
Log.v(“标记”,“授予许可”);
返回true;
}否则{
Log.v(“标签”,“权限被撤销”);
ActivityCompat.requestPermissions(这个新字符串[]{Manifest.permission.CALL_PHONE},1);
返回false;
}
}
否则{//将自动授予sdk 0上的权限
&&grantResults[0]==PackageManager.PERMISSION\u已授予){
Toast.makeText(getApplicationContext(),“已授予权限”,Toast.LENGTH\u SHORT.show();
调用_action();
}否则{
Toast.makeText(getApplicationContext(),“权限被拒绝”,Toast.LENGTH\u SHORT.show();
}
返回;
}
//其他“案例”行,用于检查其他
//此应用可能请求的权限
}
}
还要确保将其添加到清单中:
<uses-permission android:name="android.permission.CALL_PHONE" />
用于片段
如果在片段中尝试此代码,请更改
checkSelfPermission()
到
ActivityCompat.checkSelfPermission()
也会改变
ActivityCompat.requestPermissions()
到
requestPermissions()
在onClick()方法中尝试此代码
if(isPermissionGranted()){
call_action();
}
现在,要调用创建单独的方法:
public void call_action(){
String phnum = etPhoneno.getText().toString();
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + phnum));
startActivity(callIntent);
}
为运行时权限检查添加以下两种方法:
public boolean isPermissionGranted() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.CALL_PHONE)
== PackageManager.PERMISSION_GRANTED) {
Log.v("TAG","Permission is granted");
return true;
} else {
Log.v("TAG","Permission is revoked");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, 1);
return false;
}
}
else { //permission is automatically granted on sdk<23 upon installation
Log.v("TAG","Permission is granted");
return true;
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case 1: {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getApplicationContext(), "Permission granted", Toast.LENGTH_SHORT).show();
call_action();
} else {
Toast.makeText(getApplicationContext(), "Permission denied", Toast.LENGTH_SHORT).show();
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
public boolean ispermissiongrated(){
如果(Build.VERSION.SDK_INT>=23){
if(checkSelfPermission(android.Manifest.permission.CALL_PHONE)
==PackageManager.权限(已授予){
Log.v(“标记”,“授予许可”);
返回true;
}否则{
Log.v(“标签”,“权限被撤销”);
ActivityCompat.requestPermissions(这个新字符串[]{Manifest.permission.CALL_PHONE},1);
返回false;
}
}
否则{//将自动授予sdk 0上的权限
&&grantResults[0]==PackageManager.PERMISSION\u已授予){
Toast.makeText(getApplicationContext(),“已授予权限”,Toast.LENGTH\u SHORT.show();
调用_action();
}否则{
Toast.makeText(getApplicationContext(),“权限被拒绝”,Toast.LENGTH\u SHORT.show();
}
返回;
}
//其他“案例”行,用于检查其他
//此应用可能请求的权限
}
}
还要确保将其添加到清单中:
<uses-permission android:name="android.permission.CALL_PHONE" />
用于片段
如果在片段中尝试此代码,请更改
checkSelfPermission()
到
ActivityCompat.checkSelfPermission()
也会改变
ActivityCompat.requestPermissions()
到
requestPermissions()
错误是什么?错误是什么?我使用相同的代码但没有出现请求如果您在片段中尝试此代码,请将checkSelfPermission(
更改为ActivityCompact.checkSelfPermission(
和ActivityCompat.requestPermissions(
到requestPermissions(
reference:我使用相同的代码,但没有出现请求如果您在片段中尝试此代码,请将checkSelfPermission(
更改为ActivityCompact.checkSelfPermission(
和活动公司请求权限(
至请求权限(
参考: