Здравствуйте, подскажите пожалуйста:
По урокам сделал 2 приложения:
1. Отображает картинки из папки в GridView
2. Картинки устанавливает непосредственно в качестве обоев на смарт.
Возник у меня вопрос: Как сделать обработку события, чтобы при нажатии на картинку она выходила в отдельном окне вместе с кнопкой "установить обои". То есть при нажатии из приложения 1 выходила картинка и устанавливалась как в приложении 2.
Нашел похожий урок у Климова, вроде набрал все в ручную посмотрел, а в смарте вылетает и все.
http://developer.alexanderklim... idview.php
1.
| Java |
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| package com.mycompany.myapp;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity {
AsyncTaskLoadFiles myAsyncTaskLoadFiles;
public class AsyncTaskLoadFiles extends AsyncTask<Void, String, Void> {
File targetDirector;
ImageAdapter myTaskAdapter;
public AsyncTaskLoadFiles(ImageAdapter adapter) {
myTaskAdapter = adapter;
}
@Override
protected void onPreExecute() {
String ExternalStorageDirectoryPath = Environment
.getExternalStorageDirectory().getAbsolutePath();
String targetPath = ExternalStorageDirectoryPath + "/test/";
targetDirector = new File(targetPath);
myTaskAdapter.clear();
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... params) {
File[] files = targetDirector.listFiles();
Arrays.sort(files);
for (File file : files) {
publishProgress(file.getAbsolutePath());
if (isCancelled()) break;
}
return null;
}
@Override
protected void onProgressUpdate(String... values) {
myTaskAdapter.add(values[0]);
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(Void result) {
myTaskAdapter.notifyDataSetChanged();
super.onPostExecute(result);
}
}
public class ImageAdapter extends BaseAdapter {
private Context mContext;
ArrayList<String> itemList = new ArrayList<String>();
public ImageAdapter(Context c) {
mContext = c;
}
void add(String path) {
itemList.add(path);
}
void clear() {
itemList.clear();
}
void remove(int index){
itemList.remove(index);
}
@Override
public int getCount() {
return itemList.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return itemList.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
ImageView imageView;
if (convertView == null) { // if it's not recycled, initialize some
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(220, 220));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
convertView = imageView;
holder = new ViewHolder();
holder.image = imageView;
holder.position = position;
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
((ImageView)convertView).setImageBitmap(null);
}
/
new AsyncTask<ViewHolder, Void, Bitmap>() {
private ViewHolder v;
@Override
protected Bitmap doInBackground(ViewHolder... params) {
v = params[0];
Bitmap bm = decodeSampledBitmapFromUri(itemList.get(position), 220, 220);
return bm;
}
@Override
protected void onPostExecute(Bitmap result) {
super.onPostExecute(result);
v.image.setImageBitmap(result);
}
}.execute(holder);
return convertView;
}
public Bitmap decodeSampledBitmapFromUri(String path, int reqWidth,
int reqHeight) {
Bitmap bm = null;
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
options.inSampleSize = calculateInSampleSize(options, reqWidth,
reqHeight);
options.inJustDecodeBounds = false;
bm = BitmapFactory.decodeFile(path, options);
return bm;
}
public int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
if (width > height) {
inSampleSize = Math.round((float) height
/ (float) reqHeight);
} else {
inSampleSize = Math.round((float) width / (float) reqWidth);
}
}
return inSampleSize;
}
class ViewHolder {
ImageView image;
int position;
}
}
ImageAdapter myImageAdapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final GridView gridview = (GridView) findViewById(R.id.gridview);
myImageAdapter = new ImageAdapter(this);
gridview.setAdapter(myImageAdapter);
myAsyncTaskLoadFiles = new AsyncTaskLoadFiles(myImageAdapter);
myAsyncTaskLoadFiles.execute();
}
} |
|
Main
| XML |
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| LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<GridView
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="220dp"
android:numColumns="3"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"/>
</LinearLayout> |
|
2.Это приложение непосредственно устанавливает картинки в качестве обоев
| Java |
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| import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.app.WallpaperManager;
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.io.IOException;
public class MainActivity extends FragmentActivity {
ViewPager pager;
PagerAdapter pagerAdapter;
private int[] images = new int[]{R.drawable.space1, R.drawable.space2, R.drawable.space3,
R.drawable.space4, R.drawable.space5, R.drawable.space6, R.drawable.space7,};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button setWlpBtn = (Button) findViewById(R.id.setWlpBtn);
setWlpBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());
try {
wallpaperManager.setResource(images[pager.getCurrentItem()]);
Context context = getApplicationContext();
CharSequence text = "Обо успешно установлены!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
} catch (IOException e) {
e.printStackTrace();
}
}
});
pager = (ViewPager) findViewById(R.id.viewPager);
pagerAdapter = new MyFragmentPageAdapter(getSupportFragmentManager());
pager.setAdapter(pagerAdapter);
pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int i, float v, int i2) {
}
@Override
public void onPageSelected(int i) {
}
@Override
public void onPageScrollStateChanged(int i) {
}
});
}
private class MyFragmentPageAdapter extends FragmentPagerAdapter {
private int[] images = new int[] {R.drawable.space1, R.drawable.space2, R.drawable.space3,
R.drawable.space4, R.drawable.space5, R.drawable.space6, R.drawable.space7,6};
private int imagesCount = images.length;
public MyFragmentPageAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int i) {
return PageFragment.newInstance(images[i]);
}
@Override
public int getCount() {
return imagesCount;
}
}
} |
|
PageFragment
| Java |
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| import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class PageFragment extends Fragment {
static final String ARGUMENT_IMAGE_ID = "arg_image_id";
int imageId;
static Fragment newInstance(int image) {
PageFragment pageFragment = new PageFragment();
Bundle arguments = new Bundle();
arguments.putInt(ARGUMENT_IMAGE_ID, image);
pageFragment.setArguments(arguments);
return pageFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
imageId = getArguments().getInt(ARGUMENT_IMAGE_ID);
}
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment, null);
ImageView imageView = (ImageView) view.findViewById(R.id.spaceImage);
imageView.setImageResource(imageId);
return view;
}
} |
|
Main
| XML |
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| RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_above="@+id/setWlpBtn"
android:layout_marginBottom="10dip">
</android.support.v4.view.ViewPager>
<Button
android:id="@+id/setWlpBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Установить обои"
android:layout_alignParentBottom="true"
android:layout_marginBottom="50dp"/>
</RelativeLayout> |
|
fragment
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| xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/spaceImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
</ImageView>>
</RelativeLayout> |
|
Помогите пожалуйста, уже всю голову сломал.
З.Ы. Естественно новичок, сильно не пинайте.
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