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<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.genwoxue.pictureviewer" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="15" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.genwoxue.pictureviewer.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.GET_CONTENT" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.OPENABLE" /> <data android:mimeType="image/jpeg" /> </intent-filter> </activity> </application> </manifest>
mport android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
private Button btnChoose=null;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnChoose=(Button)super.findViewById(R.id.choose);
btnChoose.setOnClickListener(new OnClickListener(){
public void onClick(View v)
{
//系统会把所有查看Image类型的应用显示在列表中
Intent intent=new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
MainActivity.this.startActivity(intent.createChooser(intent, "选择图片查看APP"));
}
});
}
}
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原文地址：http://www.cnblogs.com/gisoracle/p/5245952.html
