将位图传递给另一个活动以RunTimeException结束

Question

我试图将Bitmap传递给另一个Activity,我正在使用其他Activity显示相同的图像ImageView.这就是我通过Bitmap的方式.

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK && requestCode == CAMERA_RESULT) {

        File out = new File(getFilesDir(), "newImage.jpg");

        if(!out.exists()) {

            Toast.makeText(getBaseContext(),

                    "Error while capturing image", Toast.LENGTH_LONG)

                    .show();

            return;

        }

        Bitmap mBitmap = BitmapFactory.decodeFile(out.getAbsolutePath());

        Intent bitIntent = new Intent(this, CameraTake.class);
        bitIntent.putExtra("BitmapImage", mBitmap);
        startActivity(bitIntent);

这就是我收到价值的方式:

 Intent intent = getIntent();
    bitmap= (Bitmap)intent.getParcelableExtra("BitmapImage");
    ImageView im1 = (ImageView)findViewById(R.id.camOut);
    im1.setImageBitmap(bitmap);

在运行App时,这里是我获得的logcat:

> 10-17 08:32:11.241  16762-16762/obx.com.futurister E/AndroidRuntime? FATAL EXCEPTION: main
    Process: obx.com.futurister, PID: 16762
    java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent {  }} to activity {obx.com.futurister/obx.com.futurister.OptionChooser}: java.lang.RuntimeException: Failure from system
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3699)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
            at android.app.ActivityThread.-wrap16(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5417)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
     Caused by: java.lang.RuntimeException: Failure from system
            at android.app.Instrumentation.execStartActivity(Instrumentation.java:1514)
            at android.app.Activity.startActivityForResult(Activity.java:3917)
            at android.app.Activity.startActivityForResult(Activity.java:3877)
            at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:820)
            at android.app.Activity.startActivity(Activity.java:4200)
            at android.app.Activity.startActivity(Activity.java:4168)
            at obx.com.futurister.OptionChooser.onActivityResult(OptionChooser.java:75)
            at android.app.Activity.dispatchActivityResult(Activity.java:6428)
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3695)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
            at android.app.ActivityThread.-wrap16(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5417)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
     Caused by: android.os.TransactionTooLargeException: data parcel size 4915644 bytes
            at android.os.BinderProxy.transactNative(Native Method)
            at android.os.BinderProxy.transact(Binder.java:503)
            at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:2657)
            at android.app.Instrumentation.execStartActivity(Instrumentation.java:1507)
            at android.app.Activity.startActivityForResult(Activity.java:3917)
            at android.app.Activity.startActivityForResult(Activity.java:3877)
            at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:820)
            at android.app.Activity.startActivity(Activity.java:4200)
            at android.app.Activity.startActivity(Activity.java:4168)
            at obx.com.futurister.OptionChooser.onActivityResult(OptionChooser.java:75)
            at android.app.Activity.dispatchActivityResult(Activity.java:6428)
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3695)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
            at android.app.ActivityThread.-wrap16(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5417)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

在类似的问题中,解决方案建议使用图像加载库,我应该这样做,还是可以轻松修复？寻找专业的答案.谢谢

Answer 1

根本原因已在日志中提供:

引起:android.os.TransactionTooLargeException:数据包大小4915644字节

Intent的数据传输最大上限为1 MB,因此有几种方法可以传递位图:

1. 减少位图大小,根据您的使用情况,这可能是也可能不是有效的解决方案.
2. 切换位图进行传输并在接收端重新组装,你可能需要为它编写服务,而且效率不高.做过一次,不推荐.
3. 只传递位图的URI,然后在接收活动上重新加载它.这就是Intent要求Android相机应用程序拍照的方式 - 图片保存到存储空间,只返回存储文件的URI.
4. 如果第一个和第二个活动在同一个进程中,您可以跳过上述所有操作并将位图保存到共享缓存中,其中有许多库可以实现.

Answer 2

如果您可以通过以下方式捕获图像并保存到本地存储:

File out = new File(getFilesDir(), "newImage.jpg");

你应该通过以下方式将路径传递out给其他活动:

bitIntent.putExtra("BitmapImage", out.getAbsolutePath());

代替 bitIntent.putExtra("BitmapImage", mBitmap);

并在secondActivity:

Intent intent = getIntent();
String imagePath = intent.getStringExtra("BitmapImage");
File imgFile = new  File(imagePath);

if(imgFile.exists()){

    Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());

    ImageView myImage = (ImageView) findViewById(R.id.camOut);

    myImage.setImageBitmap(myBitmap);
}