Textview组件
具有的一些功能
*文字大小颜色
*如果文字显示不下则剩余使用…
*文字加icon
*中划线,下划线
MainActivity类
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private Button mBtnTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mBtnTextView=findViewById(R.id.btn_textview);
mBtnTextView.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
//跳转到textview演示界面
Intent intent =new Intent(MainActivity.this,TextviewActivity.class);
startActivity(intent);
}
});
}
}
TextviewActivity类
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.Paint;
import android.os.Bundle;
import android.widget.TextView;
public class TextviewActivity extends AppCompatActivity {
private TextView mtv4,mtv5,mtv6;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_textview);
mtv4=findViewById(R.id.tv_4);
mtv4.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);//中划线
mtv4.getPaint().setAntiAlias(true);//去除锯齿
mtv5=findViewById(R.id.tv_5);
mtv5.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);//下划线
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:id="@+id/btn_textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Textview"
/>
</LinearLayout>
activity_textview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".TextviewActivity"
android:orientation="vertical"
android:padding="20dp">
<TextView
android:id="@+id/tv_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_text1"
android:textColor="#000000"
android:textSize="24sp"/>
<TextView
android:id="@+id/tv_2"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="@string/tv_text1"
android:maxLines="1"
android:textColor="#000000"
android:ellipsize="end"
android:textSize="24sp"
android:layout_margin="10dp"/>
<TextView
android:id="@+id/tv_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="筛选"
android:drawableRight="@drawable/exp1"
android:textColor="#000000"
android:textSize="24sp"
android:layout_margin="10dp"/>
<TextView
android:id="@+id/tv_4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_text1"
android:textColor="#000000"
android:textSize="24sp"/>
<TextView
android:id="@+id/tv_5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_text1"
android:textColor="#000000"
android:textSize="24sp"
android:layout_marginTop="10dp"/>
<TextView
android:id="@+id/tv_6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123456789987654321123456987123456789987456321"
android:textColor="#000000"
android:textSize="24sp"
android:singleLine="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:focusable="true"
android:focusableInTouchMode="true"
android:clickable="true"
/>
</LinearLayout>
drawable所用文件图片
exp1.png