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[英]Set image as wallpaper from imageview irrespective of the image size, android?
[英]Android - Set current image in imageview as the system wallpaper
我正在構建一個簡單的牆紙應用程序,用戶可以在其中瀏覽一系列圖像並將其輕松設置為新背景。
我將我的drawables / images存儲在一個數組中,但我真的不能把注意力集中在如何以一種好方法引用imageview / array中的當前圖像上。
如何更改大小寫“ R.id.bSet”(在底部)以自動從正在查看的數組中選取圖像並將其設置為牆紙?
package com.marcus.background;
import java.io.IOException;
import android.app.Activity;
import android.app.WallpaperManager;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class GalleryView extends Activity implements OnClickListener {
int pos = 0;
int amount = 10;
int max = amount - 1;
int min = 0;
Button prev, next, set;
ImageView image;
Bitmap bitmap;
final int[] imgs = new int[] { R.drawable.i1, R.drawable.i2, R.drawable.i3,
R.drawable.i4, R.drawable.i5, R.drawable.i6, R.drawable.i7,
R.drawable.i8, R.drawable.i9, R.drawable.i10, };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
image = (ImageView) findViewById(R.id.iView);
prev = (Button) findViewById(R.id.bPrev);
next = (Button) findViewById(R.id.bNext);
set = (Button) findViewById(R.id.bSet);
image.setImageResource(R.drawable.i1);
prev.setOnClickListener(this);
next.setOnClickListener(this);
set.setOnClickListener(this);
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.bPrev:
if (pos > min) {
pos--;
image.setImageResource(imgs[pos]);
;
} else {
}
break;
case R.id.bNext:
if (pos < max) {
pos++;
image.setImageResource(imgs[pos]);
;
} else {
}
break;
case R.id.bSet:
// MAGIC GOES HERE ;)
bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.i1);
try {
getApplicationContext().setWallpaper(bitmap);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// --------------- //
break;
}
}
}
// instead of this:
bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.i1);
// try this:
bitmap = BitmapFactory.decodeResource(getResources(),
imgs[pos]);
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