Question

我有一个警报对话框，但我想要更改消息取决于搜索栏中的值

Toast做得很好但我不知道如何在警告对话框消息上实现到目前为止，这是我的代码

public void requestCheckButton(View view){

    final AlertDialog.Builder popDialog = new AlertDialog.Builder(this);
    final SeekBar seek = new SeekBar(this);
    seek.setMax(11); // Para tener incrementos de 5 min

    popDialog.setTitle("¿En cuánto tiempo puedes llegar?");
    popDialog.setMessage("15 min");
    popDialog.setView(seek);
    popDialog.setPositiveButton("Mandar", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(getApplicationContext(), "Presionaste Mandar", Toast.LENGTH_SHORT).show();
        }
    });

    seek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
        int progress = 0;

        public void onProgressChanged(SeekBar seekBar, int progressV, boolean fromUser) {
            progress = progressV;
        }


        public void onStartTrackingTouch(SeekBar arg0) {

        }


        public void onStopTrackingTouch(SeekBar seekBar) {
            //Por cada incremento se suman 5 min
            Toast.makeText(getApplicationContext(), (progress)*5 +"min", Toast.LENGTH_SHORT).show();
        }
    });
    popDialog.show();
}

Answer 1

删除popDialog.show（）;
在 seek.setOnSeekBarChangeListener
之前添加
最终AlertDialog对话框= popDialog.create（）;

而不是吐司，请调用dialog.setMessage（）;

在末尾添加dialog.show（）

如此纠正的代码：

final AlertDialog.Builder popDialog = new AlertDialog.Builder(this); final SeekBar seek = new SeekBar(this); seek.setMax(11); // Para tener incrementos de 5 min popDialog.setTitle("¿En cuánto tiempo puedes llegar?"); popDialog.setMessage("15 min"); popDialog.setView(seek); popDialog.setPositiveButton("Mandar", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(getApplicationContext(), "Presionaste Mandar", Toast.LENGTH_SHORT).show(); } }); final AlertDialog dialog = popDialog.create(); seek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { int progress = 0; public void onProgressChanged(SeekBar seekBar, int progressV, boolean fromUser) { progress = progressV; } public void onStartTrackingTouch(SeekBar arg0) { } public void onStopTrackingTouch(SeekBar seekBar) { //Por cada incremento se suman 5 min dialog.setMessage((progress)*5 +"min"); } }); dialog.show(); }

Answer 2

您可以使用包含文本视图和搜索栏的视图：

dialog.xml

<?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">

 <TextView
        android:id="@+id/text_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <SeekBar
        android:id="@+id/seekbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</LinearLayout>

而不是setView(seek)：

View view = View.inflate(context, R.layout.dialog, null);
final SeekBar seekBar = (Seekbar) view.findViewById(R.id.seekbar);
final TextView textView = (TextView) view.findViewById(R.id.text_view);
popDialog.setView(view);

在你的听众中：

public void onStopTrackingTouch(SeekBar seekBar) {
            textView.setText(seekBar.getProgress() + "");
        }

使用搜索栏更改AlertDialog消息

2 个答案: