24 AIDL案例

服务端

MainActivity.java

package com.qf.day24_aidl_wordserver;

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class MainActivity extends Activity {

private EditText etEn,etCh;
private ListView lv;

private MyOpenDbHelper helper;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化View
initView();
helper = new MyOpenDbHelper(getApplicationContext());

getData();
}

public void initView() {
etEn = (EditText) findViewById(R.id.et_en);
etCh = (EditText) findViewById(R.id.et_ch);
lv = (ListView) findViewById(R.id.lv);
}

//点击进行保存
public void saveClick(View v){

String etEnStr = etEn.getText().toString().trim();
String etChStr = etCh.getText().toString().trim();

String sql = "insert into tb_words(word,detail) values(?,?)";
//添加数据到数据库
helper.execSqlData(sql, new String[]{etEnStr,etChStr});

getData();
}

//查询数据展示到LIstVIew
public void getData(){

String sql = "select * from tb_words";
Cursor cursor = helper.queryData(sql, null);

SimpleCursorAdapter adapter = new SimpleCursorAdapter
(MainActivity.this,
R.layout.item,
cursor,
new String[]{"word","detail"},
new int[]{R.id.tv_en,R.id.tv_ch},
SimpleCursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);

lv.setAdapter(adapter);
}

}

MyOpenDbHelper.java

package com.qf.day24_aidl_wordserver;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;

public class MyOpenDbHelper extends SQLiteOpenHelper{

private static final String NAME ="db_words.db";
private static final int VERSION =1;

private SQLiteDatabase db ;
public MyOpenDbHelper(Context context, String name, CursorFactory factory,
int version) {
super(context, name, factory, version);
// TODO Auto-generated constructor stub
}
public MyOpenDbHelper(Context context) {
super(context, NAME, null, VERSION);
// TODO Auto-generated constructor stub
db = getReadableDatabase();
}

@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub

String sql ="create table if not exists tb_words(_id integer primary key autoincrement,word,detail)";
db.execSQL(sql);

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub

}

//查询
public Cursor queryData(String sql, String[] selectionArgs){
return db.rawQuery(sql, selectionArgs);
}

// 增 删改
public boolean execSqlData(String sql, Object[] bindArgs){
try {
if(bindArgs!=null){

db.execSQL(sql, bindArgs);
}else{
db.execSQL(sql);
}

return true;

} catch (Exception e) {
// TODO: handle exception
return false;
}

}

//查询所有数据  返回List<>
public List<Map<String,Object>> selectData(String sql, String[] selectionArgs){

List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();
Cursor cusor = db.rawQuery(sql, selectionArgs);

while(cusor.moveToNext()){
Map<String,Object> map = new HashMap<String, Object>();
for(int i=0;i<cusor.getColumnCount();i++){
map.put(cusor.getColumnName(i), cusor.getString(i));
}
list.add(map);
}
return list;

}
}

MyService.java

package com.qf.day24_aidl_wordserver;

import java.util.List;
import java.util.Map;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;

import com.qf.day24_aidl_wordserver.MyInterfaceWord.Stub;

public class MyService extends Service{

private MyOpenDbHelper helper;

@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return new MyBinder();
}

class MyBinder extends Stub{

@Override
public String getValues(String word) throws RemoteException {
// TODO Auto-generated method stub
String sql = "select * from tb_words where word = ?";
List<Map<String, Object>> list = helper.selectData(sql, new String[]{word});
return list.toString();
}

}

@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
helper = new MyOpenDbHelper(getApplicationContext());
}

@Override
public boolean onUnbind(Intent intent) {
// TODO Auto-generated method stub
return super.onUnbind(intent);
}

@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}

}

MyInterfaceWord.aidl

package com.qf.day24_aidl_wordserver;

interface MyInterfaceWord {
String getValues(String word);
}

清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.qf.day24_aidl_wordserver"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="18" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.qf.day24_aidl_wordserver.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".MyService">
<intent-filter >
<action android:name="com.qf.day24_aidl_wordserver.MyService"/>
</intent-filter>
</service>
</application>

</manifest>

布局文件



activity_main.xml

<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=".MainActivity" >

<EditText
android:id="@+id/et_en"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入英文..." />
<EditText
android:id="@+id/et_ch"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入中文..." />

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="saveClick"
android:text="保存"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#00ff00"
android:text="以下展示内容"
/>
<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent"
></ListView>

</LinearLayout>

item.xml

<?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="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/tv_en"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="tv"
android:textColor="#f00"
/>
<TextView
android:id="@+id/tv_ch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="tv"
android:textColor="#00f"
/>

</LinearLayout>

客户端

MainActivity.java

package com.qf.day24_aidl_wordclient;

import com.qf.day24_aidl_wordserver.MyInterfaceWord;
import com.qf.day24_aidl_wordserver.MyInterfaceWord.Stub;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

private EditText etWord;
private TextView tvShow;

private MyInterfaceWord myInterfaceWord;

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

etWord = (EditText) findViewById(R.id.et_word);
tvShow = (TextView) findViewById(R.id.tv_show);

ServiceConnection conn = new ServiceConnection() {

@Override
public void onServiceDisconnected(ComponentName name) {
// TODO Auto-generated method stub

}

@Override
public void onServiceConnected(ComponentName name, IBinder service) {
// TODO Auto-generated method stub
myInterfaceWord = Stub.asInterface(service);
}
};

Intent intent = new Intent("com.qf.day24_aidl_wordserver.MyService");
//6.0必须加上
intent.setPackage("com.qf.day24_aidl_wordserver");
bindService(intent, conn, Context.BIND_AUTO_CREATE);

}

public void MyClick(View v){

try {
String str = myInterfaceWord.getValues(etWord.getText().toString().trim());

tvShow.setText(str);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

}

MyInterfaceWord .java

package com.qf.day24_aidl_wordserver;

interface MyInterfaceWord {
String getValues(String word);
}

AndroidManifest.xml 清单文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.qf.day24_aidl_wordclient"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.qf.day24_aidl_wordclient.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>

activity_main.xml

<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=".MainActivity" >

<EditText
android:id="@+id/et_word"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入查询内容" />

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="查询"
android:onClick="MyClick"
/>

<TextView
android:id="@+id/tv_show"
android:layout_width="wrap_content"
android:layout_height="wrap_content"

/>
</LinearLayout>