运行结果：

模拟器图库就三张 没办法~画质挺感人~

一个隐式意图

布局文件：

<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" > <ImageView android:id="@+id/image_choose" android:layout_width="250dp" android:layout_height="250dp" android:background="#CC0000" android:layout_centerHorizontal="true" android:layout_marginTop="30dp" android:src="@drawable/default_bg" android:padding="5dp" /> </RelativeLayout>

MainActivity.class

package com.example.chooseimage; import android.os.Bundle; import android.provider.MediaStore; import android.app.Activity; import android.content.Intent; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.ImageView; public class MainActivity extends Activity implements OnClickListener { private ImageView image_choose; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); image_choose = (ImageView) findViewById(R.id.image_choose); image_choose.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.image_choose: { Intent intent = new Intent(Intent.ACTION_PICK, null); intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(intent, 0x1); break; } } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub if (requestCode == 0x1 && resultCode == RESULT_OK) { if (data != null) { image_choose.setImageURI(data.getData()); } } super.onActivityResult(requestCode, resultCode, data); } }

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