<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin" >    <!-- android 简单的两步实现Play上的文本伸缩功能 -->    <!-- http://www.cnblogs.com/TerryBlog/archive/2013/03/12/2956165.html -->    <FrameLayout        android:id="@+id/expandable_container"        android:layout_width="wrap_content"        android:layout_height="50dp"        android:layout_marginBottom="@dimen/linear_margin_bigger" >        <TextView            android:id="@+id/expandable_text"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:clickable="true"            android:ellipsize="end"            android:text="@string/loremipsum" />    </FrameLayout>    <!-- my method -->    <FrameLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content" >        <TextView            android:id="@+id/myexpandable_text"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:maxLines="3"            android:clickable="true"            android:ellipsize="end"            android:text="@string/loremipsum" />    </FrameLayout></LinearLayout>

package com.lxh.textview;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.widget.TextView;import com.example.com.lxh.pro1.R;/** * android 简单的两步实现Play上的文本伸缩功能 * http://www.cnblogs.com/TerryBlog/archive/2013/03/12/2956165.html * @author lxh */public class ExpandableTV extends Activity {    // -------------------------- Terry‘s method --------------------------    private boolean isExpanded = false, myIsExpanded = false;    private int lastHeight = 0;    private ViewGroup expandableContainer;    private TextView textView, myTextView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_expandable_tv);        expandableContainer = (ViewGroup) findViewById(R.id.expandable_container);        textView = (TextView) findViewById(R.id.expandable_text);        textView.setOnClickListener(terryClickListener);        myTextView = (TextView) findViewById(R.id.myexpandable_text);        myTextView.setOnClickListener(myClickListener);    }        private OnClickListener terryClickListener = new OnClickListener() {        @Override        public void onClick(View v) {            if (isExpanded) {                LayoutParams params = (LayoutParams) expandableContainer.getLayoutParams();                params.height = lastHeight;                expandableContainer.setLayoutParams(params);                expandableContainer.invalidate(); //调用OnDraw方法            } else {                lastHeight = expandableContainer.getHeight();                LayoutParams params = (LayoutParams) expandableContainer.getLayoutParams();                params.height = ViewGroup.LayoutParams.WRAP_CONTENT;                expandableContainer.setLayoutParams(params);                expandableContainer.invalidate(); //调用OnDraw方法            }            isExpanded = !isExpanded;        }    };    //Terry总结：此方法缺陷，当给出最大高度不合适时，字会显示一半高度    // -------------------------- my method --------------------------    private OnClickListener myClickListener = new OnClickListener() {        @Override        public void onClick(View v) {            if (myIsExpanded) {                myTextView.setMaxLines(3);                expandableContainer.invalidate(); //调用OnDraw方法            } else {                myTextView.setMaxLines(Integer.MAX_VALUE);                expandableContainer.invalidate(); //调用OnDraw方法            }            myIsExpanded = !myIsExpanded;        }    };    //Me总结：此方法不存在Terry的问题}