为什么这种情况一直在发生？我甚至没有回收的位图，我不知道为什么我的应用程序会抛出内存错误。
我从图库中选择图片这里是从图库中获取图像然后在某个图像上显示的代码。
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
ImageView b = (ImageView) findViewById(R.id.viewImage);
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
File f = new File(Environment.getExternalStorageDirectory().toString());
for (File temp : f.listFiles()) {
if (temp.getName().equals("temp.jpg")) {
f = temp;
break;
}
}
try {
Bitmap bitmap;
BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
bitmapOptions);
b.setImageBitmap(bitmap);
String path = android.os.Environment
.getExternalStorageDirectory()
+ File.separator
+ "Phoenix" + File.separator + "default";
f.delete();
OutputStream outFile = null;
File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
try {
outFile = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
outFile.flush();
outFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
} else if (requestCode == 2) {
Uri selectedImage = data.getData();
String[] filePath = { MediaStore.Images.Media.DATA };
Cursor c = getContentResolver().query(selectedImage,filePath, null, null, null);
c.moveToFirst();
int columnIndex = c.getColumnIndex(filePath[0]);
String picturePath = c.getString(columnIndex);
c.close();
Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
Log.w("path of image from gallery......******************.........", picturePath+"");
b.setImageBitmap(thumbnail);
b.setTag(picturePath);
}
}
}
之后，用户图像下方有3个图像按钮（从图库中选取）。当用户按下其中每一个将获得该imageView drawable的名称并将发送到另一个活动然后我想在该Imagebutton上水印用户图像并在一个imageView中显示
private static HashMap<Integer,String> activityMap = new HashMap<Integer,String>();
static {
activityMap.put( R.id.agahi1,"agahi1");
activityMap.put( R.id.agahi2,"agahi2");
}
// use this in the layout xml file for all the buttons onClick attribute
public void Clicked( View vw ) {
String a = String.valueOf(activityMap.get(vw.getId()));
Intent i = new Intent(this,fotCreator.class);
ImageView b = (ImageView) findViewById(R.id.viewImage);
String c = (String) b.getTag();
i.putExtra("image",c);
i.putExtra("frame",a);
startActivity(i);
}
这是水印活动的代码
package net.svncorp.shadikade;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageView;
import android.widget.ProgressBar;
public class fotCreator extends ActionBarActivity {
private AsyncCaller myasync;
private ProgressBar bar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fot_creator);
//progress bar
bar = (ProgressBar) this.findViewById(R.id.progressBar);
MainActivity.checkversion(this);
}
@Override
public void onBackPressed() {
super.onBackPressed();
this.finish();
}
@Override
protected void onResume() {
super.onResume();
myasync = new AsyncCaller();
myasync.execute();
}
private class AsyncCaller extends AsyncTask<Void, Void, Drawable>
{
@Override
protected void onPreExecute() {
super.onPreExecute();
bar.setVisibility(View.VISIBLE);
}
@Override
protected Drawable doInBackground(Void... params) {
try { // simulate here the slow activity
Intent intent = getIntent();
final String frame = intent.getStringExtra("frame");
String image = intent.getStringExtra("image");
Resources resources = getResources();
int id = resources.getIdentifier(frame, "drawable", getPackageName());
Drawable d = resources.getDrawable(id);
return d;
} catch (Exception e1) {
e1.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Drawable result) {
super.onPostExecute(result);
//this method will be running on UI thread
ImageView finalimage = (ImageView)findViewById(R.id.finalimage);
if (isCancelled() || result == null) {
return;
}
finalimage.setImageDrawable(result);
bar.setVisibility(View.GONE);
}
}
@Override
protected void onPause() {
super.onPause();
myasync.cancel(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_fot_creator, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
现在这段代码运行速度快2到3次按下图像按钮并转到水印激活，但它会越来越慢，有时会在模拟器中冻结，我在logcat中看到这些
11-24 15:01:45.960 7751-7769/net.svncorp.shadikade I/art﹕ Alloc concurrent mark sweep GC freed 2419(163KB) AllocSpace objects, 1(1047KB) LOS objects, 12% free, 13MB/15MB, paused 0 total 30ms
11-24 15:01:48.760 7751-7768/net.svncorp.shadikade I/art﹕ Clamp target GC heap from 17MB to 16MB
11-24 15:01:48.760 7751-7768/net.svncorp.shadikade I/art﹕ Clamp target GC heap from 17MB to 16MB
11-24 15:01:48.760 7751-7768/net.svncorp.shadikade I/art﹕ Forcing collection of SoftReferences for 1047KB allocation
11-24 15:01:48.790 7751-7768/net.svncorp.shadikade I/art﹕ Alloc concurrent mark sweep GC freed 1303(86KB) AllocSpace objects, 1(993KB) LOS objects, 12% free, 13MB/15MB, paused 0 total 30ms
11-24 15:01:53.700 7751-7751/net.svncorp.shadikade I/Choreographer﹕ Skipped 1272 frames! The application may be doing too much work on its main thread.
11-24 15:01:55.350 7751-7769/net.svncorp.shadikade I/art﹕ Clamp target GC heap from 17MB to 16MB
11-24 15:01:55.350 7751-7769/net.svncorp.shadikade I/art﹕ Clamp target GC heap from 17MB to 16MB
11-24 15:01:55.350 7751-7769/net.svncorp.shadikade I/art﹕ Forcing collection of SoftReferences for 993KB allocation
11-24 15:01:55.380 7751-7769/net.svncorp.shadikade I/art﹕ Clamp target GC heap from 17MB to 16MB
11-24 15:01:55.380 7751-7769/net.svncorp.shadikade I/art﹕ Alloc concurrent mark sweep GC freed 218(9KB) AllocSpace objects, 0(0B) LOS objects, 5% free, 15MB/16MB, paused 0 total 30ms
11-24 15:01:55.380 7751-7769/net.svncorp.shadikade E/art﹕ Throwing OutOfMemoryError "Failed to allocate a 1017612 byte allocation with 954752 free bytes and 932KB until OOM"
11-24 15:01:55.380 7751-7769/net.svncorp.shadikade D/skia﹕ --- decoder->decode returned false
11-24 15:01:55.380 7751-7769/net.svncorp.shadikade E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #2
Process: net.svncorp.shadikade, PID: 7751
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.OutOfMemoryError: Failed to allocate a 1017612 byte allocation with 954752 free bytes and 932KB until OOM
at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:973)
at android.content.res.Resources.loadDrawableForCookie(Resources.java:2423)
at android.content.res.Resources.loadDrawable(Resources.java:2330)
at android.content.res.Resources.getDrawable(Resources.java:758)
at android.content.res.Resources.getDrawable(Resources.java:724)
at net.svncorp.shadikade.fotCreator$AsyncCaller.doInBackground(fotCreator.java:65)
at net.svncorp.shadikade.fotCreator$AsyncCaller.doInBackground(fotCreator.java:45)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
我认为这是像我这样的许多人的问题......任何帮助都将受到赞赏。
答案 0 :(得分：43)
也许在Manifest中将此行添加到应用程序标签上会对您有所帮助;
<application
...
...
android:largeHeap="true" >
......
......
</application>
答案 1 :(得分：15)
在Android 5上有类似的问题5.将图像移动到/ drawable-nodpi而不是/ drawable
答案 2 :(得分：6)
如果您正在使用模拟器进行测试尝试将虚拟设备的Ram设置为2gb左右。 我在虚拟设备上遇到了同样的问题，但程序在我的物理安卓设备上运行顺畅