问题描述
我一直在努力解决使用相机应用拍摄照片时我的活动有时被破坏的问题，导致以下错误和应用崩溃。
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null,request=1,result=-1,data=null} to activity
{com.example.myapp/com.example.myapp.activities.MyActivity}
java.lang.indexoutofboundsexception: Index: 0,Size: 0
我已按照 Google 文档了解如何使用相机 here 拍照。试了三四次还是出现上述错误。
我为新的 startActivityForResult 放弃了旧的 Activity Result APIs 方法，但仍然存在同样的问题。
文档 here，具体说明如下：
当开始一项活动以获得结果时，这是可能的（并且，在某些情况下 内存密集型操作，例如相机使用，几乎可以肯定） 您的流程和活动将因低 记忆。
因此，Activity Result API 将结果回调解耦 从代码中启动其他活动的位置。作为 结果回调需要在您的流程和 活动被重新创建，回调必须是无条件的 每次创建您的活动时都注册，即使逻辑 启动其他活动仅基于用户输入或其他 业务逻辑。
因此，它指出即使 Activity 被销毁，新的 Activity Result API 也会以某种方式处理这个问题。
这是我现在使用的代码：
public class MyActivity extends FragmentActivity{
private Uri photoURI;
private ImageView firstimage;
ActivityResultLauncher<Uri> intentActivityResultLauncher;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a_activity);
firstimage = findViewById(R.id.imageView_camera_open_one);
intentActivityResultLauncher=registerForActivityResult(new ActivityResultContracts.TakePicture(),result -> {
if (firstimage != null && photoURI != null)
firstimage.setimageURI(photoURI);
});
}
private void openCamera(int viewId) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
Toast.makeText(this,"Error).show();
}
if (photoFile != null) {
photoURI = FileProvider.getUriForFile(this,"com.example.android.fileprovider",photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,photoURI);
intentActivityResultLauncher.launch(photoURI);
}
}
}
}
private File createImageFile() throws IOException {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",Locale.getDefault()).format(new Date());
String imageFileName = "JPEG" + timeStamp;
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(imageFileName,".jpg",storageDir);
currentPhotoPath = image.getAbsolutePath();
return image;
}
}
添加 android:configChanges="orientation|screenSize" 或将 Activity 修复为纵向，无济于事。
是否有适当的解决方法？
完整的堆栈跟踪：
java.lang.RuntimeException: Unable to resume activity {com.example.myapp/com.example.myapp.activities.Activity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null,data=null} to activity {com.example.myapp/com.example.myapp.activities.Activity}: java.lang.indexoutofboundsexception: Index: 0,Size: 0
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4626)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4659)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:52)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2261)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null,Size: 0
at android.app.ActivityThread.deliverResults(ActivityThread.java:5324)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4613)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4659)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:52)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2261)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
Caused by: java.lang.indexoutofboundsexception: Index: 0,Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.example.myapp.activities.Activity.onActivityResult(MyActivity.java:269)
at android.app.Activity.dispatchActivityResult(Activity.java:8294)
at android.app.ActivityThread.deliverResults(ActivityThread.java:5317)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4613)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4659)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:52)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2261)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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