Leaked Window when dialog button clicked_问答_开发者

I'm trying to show an about page to the users of my wallpaper app when they click the about button however i get leaked window errors in a log cat and the activity quits before it shows the dialog.

Here is the code:

 /*
  *
  * Sensational Wallpapers Pack 1
  *
  * Wallpaper Designed by AZ2ENVY
  *
  */

package com.death2all110.SensationalWallpapers1;

import android.app.Activity;
import android.content.res.Resources;
import android.graphics.BitmapFactory;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.AsyncTask;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
import android.app.AlertDialog;
import android.widget.Button;
import android.content.DialogInterface;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList; 


import com.death2all110.SensationalWallpapers1.R;


public class wallpaper extends Activity implements AdapterView.OnItemSelectedListener,
        OnClickListener {



    private Gallery mGallery;
    private ImageView mImageView;
    private boolean mIsWallpaperSet;

    private Bitmap mBitmap;

    private ArrayList<Integer> mThumbs;
    private ArrayList<Integer> mImages;
    private WallpaperLoader mLoader;



    @Override 
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);


        requestWindowFeature(Window.FEATURE_NO_TITLE);


        findWallpapers();

        setContentView(R.layout.wallpaper_chooser);

        mGallery = (Gallery) findViewById(R.id.gallery);
        mGallery.setAdapter(new ImageAdapter(this));
        mGallery.setOnItemSelectedListener(this);
        mGallery.setCallbackDuringFling(false);

        findViewById(R.id.set).setOnClickListener(this);

        mImageView = (ImageView) findViewById(R.id.wallpaper);

        Button alert = (Button) findViewById(R.id.about_page);
        alert.setOnClickListener(this);

    }

    private void findWallpapers() {
        mThumbs = new ArrayList<Integer>(24);
        mImages = new ArrayList<Integer>(24);

        final Resources resources = getResources();
        final String packageName = getApplication().getPackageName();

        addWallpapers(resources, packageName, R.array.wallpapers);
        addWallpapers(resources, packageName, R.array.extra_wallpapers);
    }

    private void addWallpapers(Resources resources, String packageName, int list) {
        final String[] extras = resources.getStringArray(list);
        for (String extra : extras) {
            int res = resources.getIdentifier(extra, "drawable", packageName);
            if (res != 0) {
                final int thumbRes = resources.getIdentifier(extra + "_small",
                        "drawable", packageName);

                if (thumbRes != 0) {
                    mThumbs.add(thumbRes);
                    mImages.add(res);
                }
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        mIsWallpaperSet = false;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
            mLoader.cancel(true);
            mLoader = null;
        }
    }

    public void onItemSelected(AdapterView parent, View v, int position, long id) {
        if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
            mLoader.cancel();
        }
        mLoader = (WallpaperLoader) new WallpaperLoader().execute(position);
    }

    /*
     * When using touch if you tap an image it triggers both the onItemClick and
     * the onTouchEvent causing the wallpaper to be set twice. Ensure we only
     * set the wallpaper once.
     */
    private void selectWallpaper(int position) {
        if (mIsWallpaperSet) {
            return;
        }

        mIsWallpaperSet = true;
        try {
            InputStream stream = getResources().openRawResource(mImages.get(position));
            setWallpaper(stream);
            setResult(RESULT_OK);
            finish();
        } catch (IOException e) {
            Log.e("Paperless System", "Failed to set wallpaper: " + e);
        }
    }

    public void onNothingSelected(AdapterView parent) {
    }

    private class ImageAdapter extends BaseAdapter {
        private LayoutInflater mLayoutInflater;

        ImageAdapter(wallpaper context) {
            mLayoutInflater = context.getLayoutInflater();
        }

        public int getCount() {
            return mThumbs.size();
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView image;

            if (convertView == null) {
                image = (ImageView) mLayoutInflater.inflate(R.layout.wallpaper_item, parent, false);
            } else {
                image = (ImageView) convertView;
            }

            int thumbRes = mThumbs.get(position);
            image.setImageResource(thumbRes);
            Drawable thumbDrawable = image.getDrawable();
            if (thumbDrawable != null) {
                thumbDrawable.setDither(true);
            } else {
                Log.e("Paperless System", String.format(
                    "Error decoding thumbnail resId=%d for wallpaper #%d",
                    thumbRes, position));
            }
            return image;
        }
    }

    public void onClick(View v) {
        selectWallpaper(mGallery.getSelectedItemPosition());

        }   
    public void onClick1(View about) {
        // If "About was clicked.....
        if (about == findViewById(R.id.about_page)) {
            // Prepare the alert box!!
            AlertDialog.Builder alertbox = new AlertDialog.Builder(this);

            // Set message to display...
            alertbox.setMessage("Test.....");

            // Add a neutral button to the alert box AND assign a listener for said button...
            alertbox.setNeutralButton("Ok", new DialogInterface.OnClickListener(){

                // click listener for box
                public void onClick(DialogInterface arg0, int arg1){
                    // Button was clicked!!
                    Toast.makeText(getApplicationContext(), "Dialog closed successfully!", Toast.LENGTH_LONG).show();
                }
            });
            // show it!!!
            alertbox.show();
    }
    }


    class WallpaperLoader extends AsyncTask<Integer, Void, Bitmap> {
        BitmapFactory.Options mOptions;

        WallpaperLoader() {
            mOptions = new BitmapFactory.Options();
            mOptions.inDither = false;
            mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;            
        }

        protected Bitmap doInBackground(Integer... params) {
            if (isCancelled()) return null;
            try {
                return BitmapFactory.decodeResource(getResources(),
                        mImages.get(params[0]), mOptions);
            } catch (OutOfMemoryError e) {
                return null;
            }            
        }

        @Override
        protected void onPostExecute(Bitmap b) {
            if (b == null) return;

            if (!isCancelled() && !mOptions.mCancel) {
                // Help the GC
                if (mBitmap != null) {
                    mBitmap.recycle();
                }

                final ImageView view = mImageView;
                view.setImageBitmap(b);

                mBitmap = b;

                final Drawable drawable = view.getDrawable();
                drawable.setFilterBitmap(true);
                drawable.setDither(true);

                view.postInvalidate();

                mLoader = null;
            } else {
               b.recycle(); 
            }
        }

        void cancel() {
            mOptions.requestCancelDecode();
            super.cancel(true);
        }
    }
}

Here is the logcat:

I/ActivityManager(   59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.death2all110.SensationalWallpapers1/.wallpaper }

I/ActivityManager(   59): Displayed activity com.death2all110.SensationalWallpapers1/.wallpaper: 474 ms (total 474 ms)

D/dalvikvm(  286): GC freed 1448 objects / 151304 bytes in 131ms

D/dalvikvm(  106): GC freed 2485 objects / 144824 bytes in 245ms

D/dalvikvm(   59): threadid=15: bogus mon 1+0>0; adjusting

D/dalvikvm(   59): GC freed 3666 objects / 207344 bytes in 360ms

D/dalvikvm(   59): GC freed 459 objects / 21096 bytes in 357ms

E/WindowManager(  286): Activity com.death2all110.SensationalWallpapers1.wallpaper has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44c0f3d0 that was originally added here

E/WindowManager(  286): android.view.WindowLeaked: Activity com.death2all110.SensationalWallpapers1.wallpaper has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44c0f3d0 that was originally added here

E/WindowManager(  286):     at android.view.ViewRoot.<init>(ViewRoot.java:227)

E/WindowManager(  286):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)

E/WindowManager(  286):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)

E/WindowManager(  286):     at android.view.Window$LocalWindowManager.addView(Window.java:424)

E/WindowManager(  286):     at android.app.Dialog.show(Dialog.java:239)

E/WindowManager(  286):     at android.app.AlertDialog$Builder.show(AlertDialog.java:802)

E/WindowManager(  286):     at com.death2all110.SensationalWallpapers1.wallpaper.onClick(wallpaper.java:244)

E/WindowManager(  286):     at android.view.View.performClick(View.java:2364)

E/WindowManager(  286):     at android.view.View.onTouchEvent(View.java:4179)

E/WindowManager(  286):     at android.widget.TextView.onTouchEvent(TextView.java:6541)

E/WindowManager(  286):     at android.view.View.dispatchTouchEvent(View.java:3709)

E/WindowManager(  286):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

E/WindowManager(  286):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

E/WindowManager(  286):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

E/WindowManager(  286):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)

E/WindowManager(  286):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)

E/WindowManager(  286):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)

E/WindowManager(  286):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)

E/WindowManager(  286):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)

E/WindowManager(  286):     at android.os.Handler.dispatchMessage(Handler.java:99)

E/WindowManager(  286):     at android.os.Looper.loop(Looper.java:123)

E/Win开发者_StackOverflow社区dowManager(  286):     at android.app.ActivityThread.main(ActivityThread.java:4363)

E/WindowManager(  286):     at java.lang.reflect.Method.invokeNative(Native Method)

E/WindowManager(  286):     at java.lang.reflect.Method.invoke(Method.java:521)

E/WindowManager(  286):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)

E/WindowManager(  286):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

E/WindowManager(  286):     at dalvik.system.NativeStart.main(Native Method)

D/dalvikvm(  286): GC freed 1704 objects / 168544 bytes in 330ms

Not only does it have a leaked window, but when that button is clicked it also sets the wallpaper...

Any help would be greatly appreciated

change this

AlertDialog.Builder alertbox = new AlertDialog.Builder(this);

with

AlertDialog.Builder alertbox = new AlertDialog.Builder(yourActivity.this);

EDITED:

Button alert = (Button) findViewById(R.id.about_page);

alert.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {
          // do ur logic
          });

make above change to your button click

The error shows that you are using the bad context here,

AlertDialog.Builder alertbox = new AlertDialog.Builder(this);

Try to use the right context here,

getApplicationContext(); or getParent() may solve your issue...

Thanks, Suri Sahani.

Leaked Window when dialog button clicked

精彩评论

关注公众号

热门标签

图文推荐

Leaked Window when dialog button clicked

更多 问答 相关资讯：

精彩评论

关注公众号

热门标签

图文推荐

更多问答相关资讯：