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  • android之对话、单复框的使用

    对话框


    通过builder来构建一个单选框

    package xidian.dy.com.chujia;
    
    import android.content.DialogInterface;
    import android.os.Bundle;
    import android.support.v7.app.AlertDialog;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.Button;
    import android.widget.Toast;
    
    public class MainActivity extends AppCompatActivity {
    
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            Button btn = (Button) findViewById(R.id.btn);
            if(btn != null)
                btn.setOnClickListener(new MyLister());
        }
    
        class MyLister implements View.OnClickListener{
            @Override
            public void onClick(View v) {
                //通过内部类Build来构建一个对话框
                AlertDialog.Builder builer =  new AlertDialog.Builder(MainActivity.this);
                builer.setIcon(android.R.drawable.alert_dark_frame);
                //设置对话框的标题
                builer.setTitle("请选择性别");
                //设置单选框内容
                String[] items = new String[]{"男", "女"};
    
                builer.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        if(which == 0)
                            Toast.makeText(MainActivity.this, "男被选中", Toast.LENGTH_SHORT).show();
                        else
                            Toast.makeText(MainActivity.this, "女被选中", Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                });
                builer.show();
            }
    
        }
    }

    复选框


     

    package xidian.dy.com.chujia;
    
    import android.content.DialogInterface;
    import android.os.Bundle;
    import android.support.v7.app.AlertDialog;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.Button;
    
    public class MainActivity extends AppCompatActivity {
    
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            Button btn = (Button) findViewById(R.id.btn);
            if(btn != null)
                btn.setOnClickListener(new MyLister());
        }
    
        class MyLister implements View.OnClickListener{
            @Override
            public void onClick(View v) {
                //通过内部类Build来构建一个对话框
                AlertDialog.Builder builer =  new AlertDialog.Builder(MainActivity.this);
                builer.setIcon(android.R.drawable.alert_dark_frame);
                //设置对话框的标题
                builer.setTitle("请选择性别");
                //设置单选框内容
                String[] items = new String[]{"数学", "英语", "物理", "化学"};
    
                final boolean[] checkItems = new boolean[]{false, false, false, false};
                builer.setMultiChoiceItems(items, checkItems, new DialogInterface.OnMultiChoiceClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                        checkItems[which] = isChecked;
                    }
                });
    
                builer.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });
    
                builer.show();
            }
    
        }
    }
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  • 原文地址:https://www.cnblogs.com/xidongyu/p/5604265.html
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