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我正在尝试制作一个拍摄照片并允许用户将其设置为墙纸的相机应用程序，唯一的原因是它给出了错误

04-23 10:39:11.950 571-571/? E/Vold: Error reading configuration (No such file or directory)... continuing anyways

这是我的java代码

public class MainActivity extends AppCompatActivity implements   View.OnClickListener{

Button b1,b2;
ImageView iv;
Intent i;
final static int camdata=0;
Bitmap bmp;
Context context;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initialize();
    InputStream is =context.getResources().openRawResource(+R.drawable.wale);
    bmp= BitmapFactory.decodeStream(is);
}
private void initialize(){
 iv =(ImageView)findViewById(R.id.imageView);
    b1=(Button)findViewById(R.id.button);
    b2=(Button)findViewById(R.id.button2);
    b1.setOnClickListener(this);
    b2.setOnClickListener(this);
}
@Override
public void onClick(View v) {
    switch (v.getId()){
        case R.id.button:
            WallpaperManager myWallpaper =WallpaperManager.getInstance(this);
            try{
                myWallpaper.setBitmap(bmp);
            } catch (IOException e) {
                e.printStackTrace();
            }
            break;
        case R.id.button2:
            i=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(i,camdata);
            break;
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode==RESULT_OK){
        Bundle extras =data.getExtras();
        bmp=(Bitmap)extras.get("data");
        iv.setImageBitmap(bmp);
    }
}

}

我的xml代码

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.union.test5.MainActivity"
tools:showIn="@layout/activity_main">

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Set Wallpaper"
    android:id="@+id/button"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Camera"
    android:id="@+id/button2"
    android:layout_above="@+id/button"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="73dp" />

<ImageView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/imageView"

    android:layout_above="@+id/button2"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true" />


I have set the image in my drawable file wale .

我不知道这里缺少什么目录程序正在正确编译并且没有给出任何错误但它给出了运行时错误。它需要什么更改设置输入流命令时的错误或

InputStream is =context.getResources().openRawResource(+ R.drawable.wale);
  bmp= BitmapFactory.decodeStream(is);

这是主要错误。

4

1 回答 1

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从 InputStream 中删除上下文 是 =context.getResources().openRawResource(+ R.drawable.wale); bmp=BitmapFactory.decodeStream(is);

于 2016-04-25T15:19:04.003 回答