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Android中自定义View可以分两种，一种为使用系统提供View来拼成一个想要的View（比如在程序中多次出现同样的view，可以共用，相当于封装吧），另一种为自己直接使用Paint画。
本文是属于第一种，大概可分4个步骤，如果不需要自定义标签属性第一步则可跳过。
代码如下：
1. 写一个attrs:（如果不需要自定义属性则不需要）
<declare-styleable name="MyLayoutView">
<attr format="reference" name="tile" />
<attr format="reference" name="tittle" />
<attr format="reference" name="content" />
</declare-styleable>
2. layout布局（my_layout.xml）：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="@+id/my_tile"
android:layout_marginLeft="15dip"
android:orientation="vertical" >
<TextView
android:id="@+id/my_tittle"
style="@style/T7_2_Subhead"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="15dip"
android:includeFontPadding="false"
android:text="" />
<TextView
android:id="@+id/my_description"
style="@style/T7_5_Bodycopy"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:includeFontPadding="false" />
</LinearLayout>
<TextView
android:id="@+id/my_tile"
android:layout_width="200dip"
android:layout_height="200dip"
android:layout_alignParentRight="true"
android:scaleType="fitXY" />
</RelativeLayout>
</LinearLayout>
3. 编写MyLayoutView: packge com.a.b;
public class MyLayoutView extends LinearLayout {
private int tile;
private int tittle;
private int content;
private ImageView tileView;
private TextView tittleView;
private TextView contentView;
private View view;
public MyLayoutView(Context context) {
super(context);
}
public MyLayoutView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray array = context.obtainStyledAttributes(attrs,R.styleable.MyLayoutView);
tile = array.getResourceId(R.styleable.MyLayoutView_tile, -1);
tittle = array.getResourceId(R.styleable.MyLayoutView_tittle, -1);
content = array.getResourceId(R.styleable.MyLayoutView_content, -1);
LayoutInflater inflater = LayoutInflater.from(context);
this.view = inflater.inflate(R.layout.my_layout, null);
tileView = (ImageView) view.findViewById(R.id.my_tile);
tittleView = (TextView) view.findViewById(R.id.my_tittle);
contentView = (TextView) view.findViewById(R.id.my_description);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
this.initialize();
}
private void initialize() {
tileView.setImageResource(tile);
tittleView.setText(tittle);
contentView.setText(content);
LinearLayout.LayoutParams activityParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
this.removeView(this.view);
this.addView(this.view, activityParams);
}
}
4. 使用:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:my="http://schemas.android.com/apk/res/com.a.b"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.a.b.MyLayoutView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
my:content="@string/my_summary1"
my:tile="@drawablemy_one_image"
my:tittle="@string/my_tittle1" />
</RelativeLayout>
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