这篇文章主要介绍Android如何实现弹出列表、单选、多选框,文中介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
具体内容如下
效果图如下:
需要建一个menu
xml布局如下:
<?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="com.example.lyp1020k.lv.MainActivity" android:orientation="vertical"> <Button android:id="@+id/button1" android:text="列表框" android:onClick="showList" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Button android:id="@+id/button2" android:text="单选列表" android:onClick="showSingleAlertDialog" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Button android:id="@+id/button3" android:text="多选按钮" android:onClick="showMutilAlertDialog" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>
Java代码如下:
import android.content.DialogInterface; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private AlertDialog alertDialog1; //信息框 private AlertDialog alertDialog2; //单选框 private AlertDialog alertDialog3; //多选框 private Button button1; private Button button2; private Button button3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); init(); } public void init(){ button1 = (Button) findViewById(R.id.button1); button2 = (Button) findViewById(R.id.button2); button3 = (Button) findViewById(R.id.button3); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.mian, menu); return true; } public void showList(View view){ final String[] items = {"列表1", "列表2", "列表3", "列表4"}; AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this); alertBuilder.setTitle("这是列表框"); alertBuilder.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show(); alertDialog1.dismiss(); } }); alertDialog1 = alertBuilder.create(); alertDialog1.show(); } public void showSingleAlertDialog(View view){ final String[] items = {"单选1", "单选2", "单选3", "单选4"}; AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this); alertBuilder.setTitle("这是单选框"); alertBuilder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show(); } }); alertBuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { alertDialog2.dismiss(); } }); alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { alertDialog2.dismiss(); } }); alertDialog2 = alertBuilder.create(); alertDialog2.show(); } public void showMutilAlertDialog(View view){ final String[] items = {"多选1", "多选2", "多选3", "多选4"}; AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this); alertBuilder.setTitle("这是多选框"); /** *第一个参数:弹出框的消息集合,一般为字符串集合 * 第二个参数:默认被选中的,布尔类数组 * 第三个参数:勾选事件监听 */ alertBuilder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i, boolean isChecked) { if (isChecked){ Toast.makeText(MainActivity.this, "选择" + items[i], Toast.LENGTH_SHORT).show(); }else { Toast.makeText(MainActivity.this, "取消选择" + items[i], Toast.LENGTH_SHORT).show(); } } }); alertBuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { alertDialog3.dismiss(); } }); alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { alertDialog3.dismiss(); } }); alertDialog3 = alertBuilder.create(); alertDialog3.show(); } }
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