动态设置ImageView的宽高以及位置

如何动态设置ImageView的宽高以及位置

package com.pic;

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.ViewGroup.LayoutParams;

import android.widget.ImageView;

public class PicTest extends Activity {

private final String TAG = "Pictrue Test!!!";

private ImageView image;

private int height = 0;

private int width = 0;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

image = (ImageView)findViewById(R.id.ImageView01);

//height = image.getHeight();

//width = image.getWidth();

//Log.d(TAG, "height: " + height);

//Log.d(TAG, "width: " + width);

LayoutParams para;

para = image.getLayoutParams();

Log.d(TAG, "layout height0: " + para.height);

Log.d(TAG, "layout width0: " + para.width);

para.height = 300;

para.width = 300;

image.setLayoutParams(para);

Log.d(TAG, "layout height: " + para.height);

Log.d(TAG, "layout width: " + para.width);

}

}另外一种方法是 RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams(dm.widthPixels, dm.heightPixels/2-30);

top_image.setLayoutParams(param);

 

摘自：http://www.01yun.com/mobile_development/20130321/258529.html