Android在应用中依据包名启动另外一个APP

以下为TestIntentData工程

MainActivity如下:

package cn.testintentdata;
import java.util.List;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
/**
 * Demo描述:
 * 应用中依据包名启动另外一个APP
 *
 */
public class MainActivity extends Activity {
	private Button mButton;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		init();
	}
	private void init(){
		mButton=(Button) findViewById(R.id.button);
		mButton.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View view) {
				startAnotherApp("cc.testintent");
			}
		});
	}

	private void startAnotherApp(String packageName){
		PackageInfo packageInfo = null;
		try {
			packageInfo = getPackageManager().getPackageInfo(packageName, 0);
			if (packageInfo==null) {
				System.out.println("packageInfo==null");
			} else {
				System.out.println("packageInfo!=null");
			}
		} catch (NameNotFoundException e) {
			e.printStackTrace();
		}

		//<data android:scheme="app" android:host="jp.co.cybird.barcodefootballer/" />

		Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
		resolveIntent.setData(Uri.parse("app://jp.co.cybird.barcodefootballer/"));
		resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
		resolveIntent.setPackage(packageInfo.packageName);
		System.out.println("packageInfo.packageName="+packageInfo.packageName);

		List<ResolveInfo> resolveInfoList =
		getPackageManager().queryIntentActivities(resolveIntent, 0);

		System.out.println("resolveInfoList.size()="+resolveInfoList.size());

		ResolveInfo resolveInfo = resolveInfoList.iterator().next();
		if (resolveInfo != null ) {
			String activityPackageName = resolveInfo.activityInfo.packageName;
			String className = resolveInfo.activityInfo.name;

			Intent intent = new Intent(Intent.ACTION_MAIN);
			intent.addCategory(Intent.CATEGORY_LAUNCHER);
			ComponentName componentName = new ComponentName(activityPackageName, className);

			intent.setComponent(componentName);
			startActivity(intent);
		}

	}

}

main.xml如下:

<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"
    >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="click me"
        android:layout_centerInParent="true"
        />

</RelativeLayout>

以下为TestIntent工程

MainActivity如下:

package cc.testintent;
import android.os.Bundle;
import android.app.Activity;

public class MainActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
	}

}

main.xml如下:

<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"
   >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="大 家 好"
        android:layout_centerInParent="true"
    />

</RelativeLayout>

AndroidManifest.xml如下:

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

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

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="cc.testintent.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <data android:scheme="app"/>
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>