我使用此代码来启动标准相机应用程序:
CAMERA_REQUEST += 1;
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
此代码用于获取图像:
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST) {
if (data.getAction() != null) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
if (imageView1.getDrawable() == null) {
imageView1.setImageBitmap(photo);
} else if (imageView2.getDrawable() == null) {
imageView2.setImageBitmap(photo);
} else if (imageView3.getDrawable() == null) {
imageView3.setImageBitmap(photo);
}
}
}
}
但是当我在制作照片时按 Android 设备上的“后退”时,应用程序崩溃了,这是我的 logcat:
当有人点击 imageView 时是否可以查看完整图像?
11-02 10:21:41.883: E/AndroidRuntime(9801): FATAL EXCEPTION: main
11-02 10:21:41.883: E/AndroidRuntime(9801): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=3, result=0, data=null} to activity {com.obat.tabtasks/com.obat.tabtasks.photo.TakePicture}: java.lang.NullPointerException
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread.deliverResults(ActivityThread.java:2994)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3037)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread.access$1100(ActivityThread.java:128)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1191)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.os.Handler.dispatchMessage(Handler.java:99)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.os.Looper.loop(Looper.java:137)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread.main(ActivityThread.java:4514)
11-02 10:21:41.883: E/AndroidRuntime(9801): at java.lang.reflect.Method.invokeNative(Native Method)
11-02 10:21:41.883: E/AndroidRuntime(9801): at java.lang.reflect.Method.invoke(Method.java:511)
11-02 10:21:41.883: E/AndroidRuntime(9801): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
11-02 10:21:41.883: E/AndroidRuntime(9801): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
11-02 10:21:41.883: E/AndroidRuntime(9801): at dalvik.system.NativeStart.main(Native Method)
11-02 10:21:41.883: E/AndroidRuntime(9801): Caused by: java.lang.NullPointerException
11-02 10:21:41.883: E/AndroidRuntime(9801): at com.obat.tabtasks.photo.TakePicture.onActivityResult(TakePicture.java:50)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.Activity.dispatchActivityResult(Activity.java:4649)
11-02 10:21:41.883: E/AndroidRuntime(9801): at android.app.ActivityThread.deliverResults(ActivityThread.java:2990)
最佳答案
试试这个:
if(data != null && data.getData() != null){
}
else
{
}
关于java - 相机中止时应用程序崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13192538/