Android 如何在片段中进行调用
这是我的热线代码。问题是它不能打电话。出现错误提示,请参见下文: 错误:E/AndroidRuntime:致命异常:主 进程:com.example.julieridon.kabitenyo,PID:16445 java.lang.SecurityException:权限拒绝:启动意图{act=android.Intent.action.CALL dat=tel:xxx cmp=android/com.android.internal.app.ResolverActivity}from ProcessRecord{4bd5fc6 16445:com.example.julieridon.kabitenyo/u0a0} (pid=16445,uid=10000)具有已撤销的权限 android.permission.CALL\u手机 位于android.os.Parcel.readException(Parcel.java:2021) 在android.os.Parcel.readException(Parcel.java:1967) 在android.app.IActivityManager$Stub$Proxy.startActivity(IActivityManager.java:4822) 位于android.app.Instrumentation.execStartActivity(Instrumentation.java:1619) 在android.app.Activity.startActivityForResult上(Activity.java:4621) 位于android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:767) 在android.app.Activity.startActivityForResult上(Activity.java:4579) 位于android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:754) 在android.app.Activity.startActivity(Activity.java:4940) 在android.app.Activity.startActivity(Activity.java:4908) 位于com.example.julieridon.kabitenyo.HotlinesActivity$1.onClick(HotlinesActivity.java:31) 在android.view.view.performClick上(view.java:6935) 在android.widget.TextView.performClick上(TextView.java:12742) 在android.view.view$PerformClick.run(view.java:26211) 位于android.os.Handler.handleCallback(Handler.java:790) 位于android.os.Handler.dispatchMessage(Handler.java:99) 位于android.os.Looper.loop(Looper.java:164) 位于android.app.ActivityThread.main(ActivityThread.java:7000) 位于java.lang.reflect.Method.invoke(本机方法) 位于com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441) 位于com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408) 热线片段代码:Android 如何在片段中进行调用,android,android-studio,android-fragments,Android,Android Studio,Android Fragments,这是我的热线代码。问题是它不能打电话。出现错误提示,请参见下文: 错误:E/AndroidRuntime:致命异常:主 进程:com.example.julieridon.kabitenyo,PID:16445 java.lang.SecurityException:权限拒绝:启动意图{act=android.Intent.action.CALL dat=tel:xxx cmp=android/com.android.internal.app.ResolverActivity}from Proc
public class HotlinesActivity extends Fragment {
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_hotlines, container, false);
Button btnFragments = (Button) view.findViewById(R.id.call);
btnFragments.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + "123"));
getActivity().startActivity(callIntent);
}
});
return view;
}
}
对于call,您需要在AndroidManifest.xml中添加call_PHONE权限,如
<uses-permission android:name="android.permission.CALL_PHONE"/>
您可以使用onRequestPermissionsResult方法检查授权请求结果,如
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == CALL_PERMISSION_REQUEST_CODE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getContext(), "Permission Granted", Toast.LENGTH_SHORT).show();
}
}
完整的代码可能看起来像
public class YourFragment extends Fragment {
private static final int CALL_PERMISSION_REQUEST_CODE = 1234;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_hotlines, container, false);
Button btnFragments = (Button) view.findViewById(R.id.call);
btnFragments.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
call();
}
});
return view;
}
void call() {
if (ContextCompat.checkSelfPermission(getContext(), Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + "123"));
getActivity().startActivity(callIntent);
} else {
ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CALL_PHONE},
CALL_PERMISSION_REQUEST_CODE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == CALL_PERMISSION_REQUEST_CODE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getContext(), "Permission Granted", Toast.LENGTH_SHORT).show();
}
}
}
先生,还有一个问题,为不同的电话按多个按钮怎么样?有可能吗?是否使用?使用此选项,在不同的按键上传递不同的号码void call(String phoneNumber){if(ContextCompat.checkSelfPermission(getContext(),Manifest.permission.call\u PHONE)==PackageManager.permission\u grated{Intent callIntent=newintent(Intent.ACTION\u call);callIntent.setData(Uri.parse(“tel:+phoneNumber));getActivity().startActivity(callIntent);}其他{ActivityCompat.requestPermissions(getActivity(),新字符串[]{Manifest.permission.CALL_PHONE},CALL_permission_REQUEST_CODE);}
public class YourFragment extends Fragment {
private static final int CALL_PERMISSION_REQUEST_CODE = 1234;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_hotlines, container, false);
Button btnFragments = (Button) view.findViewById(R.id.call);
btnFragments.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
call();
}
});
return view;
}
void call() {
if (ContextCompat.checkSelfPermission(getContext(), Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + "123"));
getActivity().startActivity(callIntent);
} else {
ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CALL_PHONE},
CALL_PERMISSION_REQUEST_CODE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == CALL_PERMISSION_REQUEST_CODE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getContext(), "Permission Granted", Toast.LENGTH_SHORT).show();
}
}
}