本地片选择

package com.yfz;
import java.io.FileNotFoundException;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class Lesson_01_Pic extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Button button = (Button)findViewById(R.id.b01);
        button.setText("选择图片");
        button.setOnClickListener(new Button.OnClickListener(){
			@Override
			public void onClick(View v) {
			 	Intent intent = new Intent();
		        /* 开启Pictures画面Type设定为image */
		        intent.setType("image/*");
		        /* 使用Intent.ACTION_GET_CONTENT这个Action */
		        intent.setAction(Intent.ACTION_GET_CONTENT); 
		        /* 取得相片后返回本画面 */
		        startActivityForResult(intent, 1);
			}
        	
        });
    }
    
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (resultCode == RESULT_OK) {
			Uri uri = data.getData();
			Log.e("uri", uri.toString());
			ContentResolver cr = this.getContentResolver();
			try {
				Bitmap bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));
				ImageView imageView = (ImageView) findViewById(R.id.iv01);
				/* 将Bitmap设定到ImageView */
				imageView.setImageBitmap(bitmap);
			} catch (FileNotFoundException e) {
				Log.e("Exception", e.getMessage(),e);
			}
		}
		super.onActivityResult(requestCode, resultCode, data);
	}
}