android中的LayoutInflater简单运用

.在做项目的工程中，经常会用到一些相同的背景框，但是前景的选择不同。这个时候可以使用LayoutInflater来实现。

代码如下：

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent" android:id="@+id/main_layout"><TextView android:layout_width="fill_parent" android:gravity="center"android:layout_height="wrap_content" android:text="@string/info" /><Button android:id="@+id/button1" android:text="@string/dialog1"android:layout_width="match_parent" android:layout_height="wrap_content"></Button><Button android:id="@+id/button2" android:text="@string/dialog2"android:layout_width="match_parent" android:layout_height="wrap_content"></Button></LinearLayout>

inflater.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/relativeLayout1"android:layout_width="fill_parent" android:layout_height="fill_parent"xmlns:android="http://schemas.android.com/apk/res/android"><Button android:text="@string/personal_cancel"android:layout_width="wrap_content" android:id="@+id/button2"android:layout_height="wrap_content" android:layout_alignBaseline="@+id/button1"android:layout_alignBottom="@+id/button1"android:layout_alignParentRight="true" android:layout_marginRight="70dp"></Button><EditText android:layout_width="100dp" android:id="@+id/editText1"android:inputType="textPersonName" android:layout_height="wrap_content"android:layout_alignParentTop="true" android:layout_centerHorizontal="true"><requestFocus></requestFocus></EditText><TextView android:layout_width="wrap_content" android:id="@+id/textView1"android:text="@string/inputName" android:layout_height="wrap_content"android:layout_alignBaseline="@+id/editText1"android:layout_alignBottom="@+id/editText1"android:layout_alignParentLeft="true"android:textColor="#ffffff"></TextView><Button android:text="@string/personal_save"android:layout_width="wrap_content" android:id="@+id/button1"android:layout_height="wrap_content" android:layout_below="@+id/editText1"android:layout_toLeftOf="@+id/editText1"></Button></RelativeLayout>

inflater2,xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/rank_layout"android:layout_width="fill_parent" android:layout_height="fill_parent"xmlns:android="http://schemas.android.com/apk/res/android"><TextView android:layout_width="wrap_content" android:id="@+id/textView1"android:textAppearance="?android:attr/textAppearanceLarge"android:text="@string/second_inflater" android:layout_height="wrap_content"android:layout_alignParentTop="true" android:layout_centerHorizontal="true"android:layout_marginTop="35dp"></TextView></RelativeLayout>

background.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="300dp"  android:layout_height="150dp"  android:background="@drawable/bg"  android:id="@+id/bglayout">    </LinearLayout>

java代码部分：

InflaterActivity,java

package fover.inflater;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class InflaterActivity extends Activity implements OnClickListener {private Button button1;private Button button2;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);findView();setOnclick();}/** * 描述：设置监听事件 */private void setOnclick() {button1.setOnClickListener(this);button2.setOnClickListener(this);}/** * 描述：发现各种VIEW */private void findView() {button1 = (Button) findViewById(R.id.button1);button2 = (Button) findViewById(R.id.button2);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:Intent intent=new Intent(InflaterActivity.this, personal.class);startActivity(intent);break;case R.id.button2:Intent intent2=new Intent(InflaterActivity.this, rank.class);startActivity(intent2);break;default:break;}}}

personal.java

package fover.inflater;import android.app.Activity;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.view.Window;import android.widget.LinearLayout;public class personal extends Activity {private View inflaterView;private LinearLayout bgView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.background);bgView=(LinearLayout)findViewById(R.id.bglayout);LayoutInflater inflater=LayoutInflater.from(this);inflaterView=inflater.inflate(R.layout.inflater, null);bgView.addView(inflaterView,new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));}}

rank.java

package fover.inflater;import android.app.Activity;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.view.Window;import android.widget.LinearLayout;public class rank extends Activity {private LinearLayout bigView;private View inflaterView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.background);bigView=(LinearLayout)findViewById(R.id.bglayout);LayoutInflater inflater=LayoutInflater.from(this);inflaterView=inflater.inflate(R.layout.inflater2, null);bigView.addView(inflaterView,new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));}}

需要注意的是需要在：AndroidManifest.xml设置权限哦。

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="fover.inflater"      android:versionCode="1"      android:versionName="1.0">    <uses-sdk android:minSdkVersion="8" />    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".InflaterActivity"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <activity android:name="personal" android:theme="@android:style/Theme.Dialog" ></activity>        <activity android:name="rank" android:theme="@android:style/Theme.Dialog"></activity>    </application></manifest>

运行效果截图：

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