比如，有这么个需求，要求从服务器上返回的数据来动态生产视图，来看

activity_main.xml<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:focusable="true"android:focusableInTouchMode="true"tools:context=".MainActivity" ><LinearLayoutandroid:id="@+id/autorunlayout"android:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical" /></RelativeLayout>

public class MainActivity extends Activity {private List<AutoRun> list;private AutoRun autoRun;private LinearLayout autorunlayout;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);autorunlayout = (LinearLayout) findViewById(R.id.autorunlayout);list = new ArrayList<AutoRun>();autoRun = new AutoRun();dataProvieder();GetView();}/**** @desc  用来模拟服务器得到的数据**/private List<AutoRun> dataProvieder() {String str = "["+ "{\"category\":0,\"label\":\"姓名\",\"minValue\":\"0\",\"maxValue\":\"0\",\"defaultValue\":\"0\",\"listValue\":[]},"+ "{\"category\":0,\"label\":\"年龄\",\"minValue\":\"4\",\"maxValue\":\"120\",\"defaultValue\":\"20\",\"listValue\":[]},"+ "{\"category\":1,\"label\":\"城市\",\"minValue\":\"0\",\"maxValue\":\"0\",\"defaultValue\":\"2\",\"listValue\":[\"北京\",\"上海\",\"广东\",\"深圳\",\"江西\"]},"+ "{\"category\":1,\"label\":\"职业\",\"minValue\":\"0\",\"maxValue\":\"0\",\"defaultValue\":\"0\",\"listValue\":[\"IT\",\"教育贸易\",\"贸易\",\"金融\",\"政府\"]}"+ "]";Gson gson = new Gson(); //Google提供的对象和Json互转的jar包list = gson.fromJson(str, new TypeToken<List<AutoRun>>() {}.getType());return list;}private void GetView() {for (int i = 0; i < list.size(); i++) {if (list.get(i).category == 0) {autorunlayout.addView(GetEditLayout(list.get(i).label,list.get(i).defaultValue));} else if (list.get(i).category == 1) {autorunlayout.addView(GetSpinnerLayout(list.get(i).label,list.get(i).listValue, list.get(i).defaultValue));}}}private View GetEditLayout(String txt, String hint) {LayoutInflater inflater = getLayoutInflater().from(this);View view = inflater.inflate(R.layout.autorun_edittext, null);((TextView) view.findViewById(R.id.label)).setText(txt);((EditText) view.findViewById(R.id.edit)).setHint(hint);return view;}private View GetSpinnerLayout(String txt, List<String> value,String defaulValue) {LayoutInflater inflater = getLayoutInflater().from(this);View view = inflater.inflate(R.layout.autorun_spnnier, null);((TextView) view.findViewById(R.id.label)).setText(txt);ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1, value);Spinner spinner = (Spinner) view.findViewById(R.id.spinner);spinner.setAdapter(adapter);spinner.setSelection(Integer.parseInt(defaulValue));return view;}
}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="50.0dp"android:gravity="center_vertical"android:orientation="horizontal" ><TextViewandroid:id="@+id/label"android:layout_width="80.0dp"android:layout_height="wrap_content"android:gravity="center"android:text="test" /><EditTextandroid:id="@+id/edit"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginRight="10.0dp" /></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="50.0dp"android:gravity="center_vertical"android:orientation="horizontal" ><TextViewandroid:id="@+id/label"android:layout_width="80.0dp"android:layout_height="wrap_content"android:gravity="center"android:text="test" /><Spinnerandroid:id="@+id/spinner"android:layout_width="match_parent"android:layout_height="50.0dp"android:layout_marginRight="10.0dp" /></LinearLayout>

运行效果：

注：
 
 获得 LayoutInflater 实例的三种方式

1.LayoutInflater inflater = getLayoutInflater();  //调用Activity的getLayoutInflater()2.LayoutInflater localinflater =(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);3. LayoutInflater inflater = LayoutInflater.from(context);

这三种方式最终本质是都是调用的Context.getSystemService()

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