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[操作系统]andriod 图片选择器


<??> <manifest ="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"));       }     });   } }