Android動態刷新界面
阿新 • • 發佈:2018-01-03
Android
效果圖:
activity_main.xml
<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=".MainActivity" > <Button android:id="@+id/btn_add" android:layout_width="wrap_content" android:layout_height="wrap_content" android:onClick="onClick" android:text="添加" /> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:id="@+id/ll" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > </LinearLayout> </ScrollView> </LinearLayout>
MainActivity.java
import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; public class MainActivity extends Activity { private LinearLayout llGroup; private int i = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); llGroup = (LinearLayout) findViewById(R.id.ll); } public void onClick(View v){ //定義一個Textview對象 TextView tv = new TextView(this); //設置TextView文本內容 tv.setText("Test: " + ++i); //把textview對象添加到linearLayout中 llGroup.addView(tv); } }
Android動態刷新界面