3. Android框架和工具之 xUtils（ViewUtils ）

     @ViewInject(R.id.btn)
private Button btn;

@ViewInject(R.id.img)
private ImageView img;

@ViewInject(R.id.list)
private ListView list;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
ViewUtils.inject(this);
}

 @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);

btn = (Button) findViewById(R.id.btn);
img = (ImageView) findViewById(R.id.img);
list = (ListView) findViewById(R.id.list);

}

     @OnClick({ R.id.btn, R.id.img })
public void clickMethod(View v) {
Toast.makeText(SecondActivity.this, "you clicked button!",
Toast.LENGTH_SHORT).show();
}

@OnItemClick(R.id.list)
public void itemClick(AdapterView<?> parent, View view, int position,long id) {
Toast.makeText(SecondActivity.this, "position--->" + position,
Toast.LENGTH_SHORT).show();
}

      btn.setOnClickListener(this);

list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(SecondActivity.this, "position--->" + position,
Toast.LENGTH_SHORT).show();
}
});

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn:
Toast.makeText(SecondActivity.this, "you clicked button!",
Toast.LENGTH_SHORT).show();
break;
default:
break;
}
}

 <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"
tools:context="com.himi.viewutils.MainActivity" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >

<Button
android:id="@+id/button1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="按钮1" />

<Button
android:id="@+id/button2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="按钮2" />
</LinearLayout>

<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>

</LinearLayout>

 package com.himi.viewutils;

import com.lidroid.xutils.ViewUtils;
import com.lidroid.xutils.view.annotation.ViewInject;
import com.lidroid.xutils.view.annotation.event.OnClick;
import com.lidroid.xutils.view.annotation.event.OnItemClick;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {

private String[] data = {
"吕布","赵云","关羽","张飞","许褚","马超"
};

/**
* 注入View到Activity
*/

@ViewInject(R.id.button1)
private Button button1;

@ViewInject(R.id.button2)
private Button button2;

@ViewInject(R.id.lv)
private ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//不能少
ViewUtils.inject(this);

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, data);
lv.setAdapter(adapter);

}

@OnClick({R.id.button1,R.id.button2})
public void click(View v) {//点击方法名可以随意取
if(v.getId() == R.id.button1) {
Toast.makeText(this, "点击了按钮1", 0).show();
}
if(v.getId() == R.id.button2) {
Toast.makeText(this, "点击了按钮2", 0).show();
}
}

@OnItemClick(R.id.lv)//item点击方面名随便取
public void itemClick(AdapterView<?> parent, View view,
int position,long id) {
Toast.makeText(this, "你点击了按钮了 "+data[position], 0).show();
}

}

// xUtils的view注解要求必须提供id，以使代码混淆不受影响。
@ViewInject(R.id.textView)
TextView textView;

//@ViewInject(vale=R.id.textView, parentId=R.id.parentView)
//TextView textView;

@ResInject(id = R.string.label, type = ResType.String)
private String label;

// 取消了之前使用方法名绑定事件的方式，使用id绑定不受混淆影响
// 支持绑定多个id @OnClick({R.id.id1, R.id.id2, R.id.id3})
// or @OnClick(value={R.id.id1, R.id.id2, R.id.id3}, parentId={R.id.pid1, R.id.pid2, R.id.pid3})
// 更多事件支持参见ViewCommonEventListener类和包com.lidroid.xutils.view.annotation.event。
@OnClick(R.id.test_button)
public void testButtonClick(View v) { // 方法签名必须和接口中的要求一致
...
}
...
//在Activity中注入：
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ViewUtils.inject(this); //注入view和事件
...
textView.setText("some text...");
...
}
//在Fragment中注入：
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.bitmap_fragment, container, false); // 加载fragment布局
ViewUtils.inject(this, view); //注入view和事件
...
}
//在PreferenceFragment中注入：
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ViewUtils.inject(this, getPreferenceScreen()); //注入view和事件
...
}
// 其他重载
// inject(View view);
// inject(Activity activity)
// inject(PreferenceActivity preferenceActivity)
// inject(Object handler, View view)
// inject(Object handler, Activity activity)
// inject(Object handler, PreferenceGroup preferenceGroup)
// inject(Object handler, PreferenceActivity preferenceActivity)