android获取本地图片并显示图片

import java.io.FileNotFoundException;

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.view.View.OnClickListener;
import android.widget.ImageView;

import com.maikefengchao.daixu.R;

public class WriteArticle_CompeterelayActivity extends BaseActivity {
private ImageView im_upload_img;

@Override
public void initView(Bundle savedInstanceState){
setContentView(R.layout.view_write_competerelay);

im_upload_img = (ImageView)findViewById(R.id.write_competerelay_cover_iv);
}

@Override
protected void setListener() {
im_upload_img.setOnClickListener(new 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 processLogic(Bundle saveInstanceState) {

}

//获取本地图片
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Uri uri = data.getData();
String img_url = uri.getPath();//这是本机的图片路径
ContentResolver cr = this.getContentResolver();
try {
Bitmap bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));
ImageView imageView = (ImageView) findViewById(R.id.write_competerelay_cover_iv);
/* 将Bitmap设定到ImageView */
imageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
Log.e("Exception", e.getMessage(),e);
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}