我正在使用此功能将图像保存到SD卡，但我一直收到此错误
这是我的saveImage函数：
private void saveImage() {
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... arg0) {
@SuppressWarnings("deprecation")
String FILENAME = getString(R.string.app_name)
+ new Date().getDate();
try {
@SuppressWarnings("unused")
FileOutputStream fos = null;
fos = openFileOutput(FILENAME, Context.MODE_PRIVATE);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
parent.setDrawingCacheEnabled(true);
Bitmap bitmap = parent.getDrawingCache();
Canvas canvas = new Canvas(bitmap);
parent.draw(canvas);
// bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
File dir = new File(Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/" + getString(R.string.app_name));
dir.mkdirs();
String path = Environment.getExternalStorageDirectory()
.toString();
OutputStream fOut = null;
String ime = getIntent().getStringExtra("ime");
File file = new File(dir.getAbsolutePath(), ime + ".jpg");
try {
fOut = new FileOutputStream(file);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
try {
fOut.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
MediaStore.Images.Media.insertImage(getContentResolver(),
file.getAbsolutePath(), file.getName(),
file.getName());
} catch (FileNotFoundException e) {
Toast.makeText(Draw.this, getString(R.string.error),
Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
Toast.makeText(getApplicationContext(), R.string.imageSaved_mk,
Toast.LENGTH_SHORT).show();
super.onPostExecute(result);
}
}.execute();
}
从logCat输出：
08-04 15:30:37.369: W/System.err(6942): java.io.FileNotFoundException: /mnt/sdcard/Боенка/null.jpg (Permission denied)
08-04 15:30:37.395: W/System.err(6942): at org.apache.harmony.luni.platform.OSFileSystem.openImpl(Native Method)
08-04 15:30:37.420: W/System.err(6942): at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:152)
08-04 15:30:37.444: W/System.err(6942): at java.io.FileOutputStream.<init>(FileOutputStream.java:97)
08-04 15:30:37.444: W/System.err(6942): at java.io.FileOutputStream.<init>(FileOutputStream.java:69)
08-04 15:30:37.444: W/System.err(6942): at com.boenka.mk.Draw$2.doInBackground(Draw.java:147)
08-04 15:30:37.455: W/System.err(6942): at com.boenka.mk.Draw$2.doInBackground(Draw.java:1)
08-04 15:30:37.492: W/System.err(6942): at android.os.AsyncTask$2.call(AsyncTask.java:185)
08-04 15:30:37.492: W/System.err(6942): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
08-04 15:30:37.492: W/System.err(6942): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
08-04 15:30:37.510: W/System.err(6942): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
08-04 15:30:37.510: W/System.err(6942): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
08-04 15:30:37.510: W/System.err(6942): at java.lang.Thread.run(Thread.java:1096)
08-04 15:30:37.529: W/dalvikvm(6942): threadid=16: thread exiting with uncaught exception (group=0x4001d800)
08-04 15:30:37.561: E/AndroidRuntime(6942): FATAL EXCEPTION: AsyncTask #1
08-04 15:30:37.561: E/AndroidRuntime(6942): java.lang.RuntimeException: An error occured while executing doInBackground()
08-04 15:30:37.561: E/AndroidRuntime(6942): at android.os.AsyncTask$3.done(AsyncTask.java:200)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.lang.Thread.run(Thread.java:1096)
08-04 15:30:37.561: E/AndroidRuntime(6942): Caused by: java.lang.NullPointerException
08-04 15:30:37.561: E/AndroidRuntime(6942): at com.boenka.mk.Draw$2.doInBackground(Draw.java:154)
08-04 15:30:37.561: E/AndroidRuntime(6942): at com.boenka.mk.Draw$2.doInBackground(Draw.java:1)
08-04 15:30:37.561: E/AndroidRuntime(6942): at android.os.AsyncTask$2.call(AsyncTask.java:185)
08-04 15:30:37.561: E/AndroidRuntime(6942): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
08-04 15:30:37.561: E/AndroidRuntime(6942): ... 4 more
任何人都可以帮我解决这个问题
答案 0 :(得分：1)
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