[英]Error android.content.ActivityNotFoundException: only in very few devices
在onRequestPermissionsResult
上获取android.content.ActivityNotFoundException:
在极少数(例如 Android 10,诺基亚)设备中,但它在所有其他设备中都可以正常工作。
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case 123:
if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
// Permission Granted
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 1);
} else {
// Permission Denied
Toast.makeText(Pic.this, "Gallery_Permission Denied", Toast.LENGTH_SHORT)
.show();
}
break;
case 789:
if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
// Permission Granted
camera_getpic();
}
else {
// Permission Denied
Toast.makeText(Pic.this, "Camera_Permission Denied", Toast.LENGTH_SHORT)
.show();
}
break;
case 555:
if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
// Permission Granted
camera_continue();
} else {
// Permission Denied
Toast.makeText(Pic.this, "Permission Denied", Toast.LENGTH_SHORT)
.show();
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
错误。
java.lang.RuntimeException:
at android.app.ActivityThread.deliverResults (ActivityThread.java:4873)
at android.app.ActivityThread.handleSendResult (ActivityThread.java:4914)
at android.app.servertransaction.ActivityResultItem.execute (ActivityResultItem.java:51)
at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2041)
at android.os.Handler.dispatchMessage (Handler.java:107)
at android.os.Looper.loop (Looper.java:214)
at android.app.ActivityThread.main (ActivityThread.java:7386)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:980)
Caused by: android.content.ActivityNotFoundException:
at android.app.Instrumentation.checkStartActivityResult (Instrumentation.java:2058)
at android.app.Instrumentation.execStartActivity (Instrumentation.java:1716)
at android.app.Activity.startActivityForResult (Activity.java:5192)
at android.support.v4.app.FragmentActivity.startActivityForResult (FragmentActivity.java:767)
at android.app.Activity.startActivityForResult (Activity.java:5150)
at android.support.v4.app.FragmentActivity.startActivityForResult (FragmentActivity.java:754)
**at com.sample.pic.Pic.onRequestPermissionsResult (Pic.java:334)**
at android.app.Activity.dispatchRequestPermissionsResult (Activity.java:8264)
at android.app.Activity.dispatchActivityResult (Activity.java:8114)
at android.app.ActivityThread.deliverResults (ActivityThread.java:4866)
原因:
当对 Context# startActivity
或其变体之一的call
失败时,将引发此异常,因为找不到 Activity 来执行给定的 Intent。
您假设这大约 20 亿台 Android 设备中的每一个都有一个或多个应用程序,其活动与Intent.ACTION_MAIN
和Intent.CATEGORY_APP_YourAppName
匹配。 这些设备中的任何一个都不需要进行此类活动。
解决方案
Option #1:
将您的 startActivity() 调用包装在try/catch block
中并捕获 ActivityNotFoundException,然后告诉用户您找不到合适的应用程序。
Option #2:
使用PackageManager
和queryIntentActivities()
查看 Intent 是否有任何匹配项。 如果没有,不要调用startActivity()
,然后告诉用户你找不到合适的应用程序。
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