新增
./res/layout/layout_gv_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/adapter_iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/adapter_tv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/adapter_iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/adapter_tv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
</LinearLayout>
因GridView中不只包含一個TextView資訊←可以用android.R.layout.simple_list_item_1
而是每個Item有TextView及ImageView←故建立一個類別extends BaseAdapter
./src/com.tsots.allap/GVAdapter.java
package com.tsots.allap;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class GVAdapter extends BaseAdapter
{
LayoutInflater mInflater;
ArrayList<String> adapter_apName;
ArrayList<Bitmap> adapter_apIcon;
public GVAdapter(Context context, ArrayList<String> list_apName, ArrayList<Bitmap> list_apIcon)
{
mInflater = LayoutInflater.from(context);
adapter_apName = list_apName;
adapter_apIcon = list_apIcon;
}
@Override
public int getCount() {
return adapter_apIcon.size();
}
@Override
public Object getItem(int position) {
return adapter_apIcon.size();
}
LayoutInflater mInflater;
ArrayList<String> adapter_apName;
ArrayList<Bitmap> adapter_apIcon;
public GVAdapter(Context context, ArrayList<String> list_apName, ArrayList<Bitmap> list_apIcon)
{
mInflater = LayoutInflater.from(context);
adapter_apName = list_apName;
adapter_apIcon = list_apIcon;
}
@Override
public int getCount() {
return adapter_apIcon.size();
}
@Override
public Object getItem(int position) {
return adapter_apIcon.size();
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = mInflater.inflate(R.layout.layout_gv_item,null);
ImageView adapter_iv = (ImageView) convertView.findViewById (R.id.adapter_iv);
TextView adapter_tv = (TextView) convertView.findViewById (R.id.adapter_tv);
adapter_iv.setImageBitmap(adapter_apIcon.get(position));
adapter_tv.setText(adapter_apName.get(position).toString());
return convertView;
}
}
主程式部份則多抓一個ApplicationInfo.loadIcon(packageManager)=AP icon的值
./src/com.tsots.allap/Activity_ALLAP.java
GVAdapter gvadapter;
gvadapter = new GVAdapter(context, list_apName, list_apIcon);
GridView gridView1;
gridView1 = (GridView) findViewById (R.id.gridView1);
PackageManager packageManager = context.getPackageManager();
//取得Device中包括系統預設與手動安裝的所有AP
List<ApplicationInfo> allappInfo = packageManager.getInstalledApplications(PackageManager.GET_ACTIVITIES);
for(int i = 0 ; i <allappInfo.size() ; i ++)
{
ApplicationInfo appAI = allappInfo.get(i);
ApplicationInfo appAI = allappInfo.get(i);
//取得Device中可以Launch的AP
Intent intent = packageManager.getLaunchIntentForPackage(appAI.packageName);
if (intent != null)
{
String finalAPName = appAI.loadLabel(packageManager).toString();
Drawable drawableAPIcon = appAI.loadIcon(packageManager);
Intent intent = packageManager.getLaunchIntentForPackage(appAI.packageName);
if (intent != null)
{
String finalAPName = appAI.loadLabel(packageManager).toString();
Drawable drawableAPIcon = appAI.loadIcon(packageManager);
// ApplicationInfo取得的icon為Drawable, 需轉成Bitmap
Bitmap bitmapAPIcon = DrawableToBitmap(drawableAPIcon);
Bitmap bitmapAPIcon = DrawableToBitmap(drawableAPIcon);
// 調整icon為相同pixel
Bitmap finalAPicon = fixSize(bitmapAPIcon);
list_apName.add(finalAPName);
list_apIcon.add(finalAPicon);
}
Bitmap finalAPicon = fixSize(bitmapAPIcon);
list_apName.add(finalAPName);
list_apIcon.add(finalAPicon);
}
}
gvadapter = new GVAdapter(context, list_apName, list_apIcon);
gridView1.setAdapter(gvadapter);
public Bitmap DrawableToBitmap(Drawable drawableAPIcon)
{
BitmapDrawable bd = (BitmapDrawable)drawableAPIcon;
Bitmap bitmapAPIcon = bd.getBitmap();
return bitmapAPIcon;
BitmapDrawable bd = (BitmapDrawable)drawableAPIcon;
Bitmap bitmapAPIcon = bd.getBitmap();
return bitmapAPIcon;
}
public Bitmap fixSize(Bitmap bitmapAPIcon)
{
int iconWidth = 0;
int iconHeight = 0;
int newIconWidth = 100;
int newIconHeight = 100;
iconWidth = bitmapAPIcon.getWidth();
iconHeight = bitmapAPIcon.getHeight();
float scaleIconWidth = ((float) newIconWidth) / iconWidth;
float scaleIconHeight = ((float) newIconHeight) / iconHeight;
Matrix iconMatrix = new Matrix();
iconMatrix.postScale(scaleIconWidth, scaleIconHeight);
Bitmap finalAPicon = Bitmap.createBitmap(bitmapAPIcon, 0, 0,iconWidth, iconHeight, iconMatrix, true);
return finalAPicon;
}
int iconWidth = 0;
int iconHeight = 0;
int newIconWidth = 100;
int newIconHeight = 100;
iconWidth = bitmapAPIcon.getWidth();
iconHeight = bitmapAPIcon.getHeight();
float scaleIconWidth = ((float) newIconWidth) / iconWidth;
float scaleIconHeight = ((float) newIconHeight) / iconHeight;
Matrix iconMatrix = new Matrix();
iconMatrix.postScale(scaleIconWidth, scaleIconHeight);
Bitmap finalAPicon = Bitmap.createBitmap(bitmapAPIcon, 0, 0,iconWidth, iconHeight, iconMatrix, true);
return finalAPicon;
