linearlayout layoutparams如何在imagebutton上加文字

如何在 HorizontalScrollView 中设置线性布局宽度

你需要一些动态代码来衡量屏幕的宽度和 programtically ，然后设置每个 linearlayout 的宽度 （icon1、 icon2 等) 对这种宽度的 1/4。 DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(metrics.widthPixels/4, LayoutParams.MATCH_PARENT); LinearLayout icon1 = (LinearLayout) findViewById(R.id.icon1); icon1.setLayoutParams(params); //etc

如何在imagebutton上加文字

我写了一个这样的： ment.activity; import android.content.Context; import android.view.Gravity; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; public class TextImageView extends LinearLayout { public TextImageView(Context context, String title, int resId) { super(context); this.setOrientation(HORIZONTAL); // Here we build the child views in code. They could also have // been specified in an XML file. mTitle = new TextView(context); mTitle.setText(title); mTitle.setGravity(Gravity.CENTER); addView(mTitle, new LinearLayout.LayoutParams( LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); mImage = new ImageView(context); mImage.setImageResource(resId); addView(mImage, new LinearLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));// width height } /** * Convenience method to set the title of a SpeechView */ public void setTitle(String title) { mTitle.setText(title); } public void setImage(int resId) { mImage.setImageResource(resId); } private TextView mTitle; private ImageView mImage; }