<LinearLayout 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"

android:orientation="vertical"

tools:context="${relativePackage}.${activityClass}" >

<!-- 当width和heigh设置0时  
weight表示 渲染的权重     当不指定值时代表的 优先级    默认是1  值越大 优先级越低 -->

<com.loopj.android.image.SmartImageView

android:layout_weight="1000"

android:id="@+id/siv"

android:layout_width="fill_parent"

 android:layout_height="fill_parent" />

<EditText

android:singleLine="true"

android:text="http://img0.bdstatic.com/img/image/shouye/dengni47.jpg"

android:id="@+id/et"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:hint="请输入图片路径" /><!-- 提示 -->

<Button

android:onClick="click"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:hint="浏览图片"/>

</LinearLayout>

public class MainActivity extends Activity
{

private EditText et_path;

@Override

protected void onCreate(Bundle savedInstanceState)
{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

et_path =
(EditText) findViewById(R.id.et);

}

public void click(View
view)

{

SmartImageView siv = (SmartImageView) findViewById(R.id.siv);

siv.setImageUrl(et_path.getText().toString().trim(),
R.drawable.ic_launcher,
R.drawable.ic_launcher);

}

}