我使用以下代码来创建警报对话框。
AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(this, android.R.style.Theme_Holo_Light));
View pickerView = getLayoutInflater().inflate(R.layout.picker_dialog, null);
builder.setView(pickerView);
builder.setMessage("AlertDialog").setCancelable(false).setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "got it!", Toast.LENGTH_SHORT).show();
}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).setNeutralButton("Neutral", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "neutralize", Toast.LENGTH_SHORT).show();
}
});
AlertDialog alert = builder.create();
alert.setTitle("number picker");
alert.show();
问题是当我使用此代码创建对话框时,这三个按钮放置不均匀,如下所示:
实际上我想要得到的是这样的:
这两个按钮同等放置
我知道这是alertdialog主题的问题。但我尝试了无数次,但我无法改变任何事情。
谁能告诉我如何处理主题才能获得像第二个这样的警报对话框?
picker_dialog的布局文件如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="input"/>
</LinearLayout>
我遵循 Android - Make AlertDIalog buttons a uniform size 的建议。代码如下:
AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(this, android.R.style.Theme_Dialog));
View pickerView = getLayoutInflater().inflate(R.layout.picker_dialog, null);
builder.setView(pickerView);
builder.setMessage("AlertDialog").setCancelable(false).setPositiveButton("Verify", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "got it!", Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.setNeutralButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "Neutral", Toast.LENGTH_SHORT).show();
}
});
final AlertDialog alert = builder.create();
alert.setTitle("number picker");
alert.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
Button posButton = alert.getButton(DialogInterface.BUTTON_POSITIVE);
Button negButton = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
Button neuButton = alert.getButton(DialogInterface.BUTTON_NEUTRAL);
LinearLayout.LayoutParams posParams = (LinearLayout.LayoutParams) posButton.getLayoutParams();
posParams.weight = 1;
posParams.width = LinearLayout.LayoutParams.MATCH_PARENT;
posParams.height = LinearLayout.LayoutParams.WRAP_CONTENT;
LinearLayout.LayoutParams negParams = (LinearLayout.LayoutParams) negButton.getLayoutParams();
negParams.weight = 1;
negParams.width = LinearLayout.LayoutParams.MATCH_PARENT;
posParams.height = LinearLayout.LayoutParams.WRAP_CONTENT;
LinearLayout.LayoutParams neuParams = (LinearLayout.LayoutParams) neuButton.getLayoutParams();
neuParams.weight = 1;
neuParams.width = LinearLayout.LayoutParams.MATCH_PARENT;
neuParams.height = LinearLayout.LayoutParams.WRAP_CONTENT;
posButton.setLayoutParams(posParams);
negButton.setLayoutParams(negParams);
neuButton.setLayoutParams(neuParams);
}
});
alert.show();
似乎正面按钮已推到右角并消失了。
有人能解决这个问题吗?
根据Kushan的建议,我从dialog onshow监听器中取出布局设置代码,完整代码如下:
AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(this, android.R.style.Theme_Dialog));
View pickerView = getLayoutInflater().inflate(R.layout.picker_dialog, null);
builder.setView(pickerView);
builder.setMessage("AlertDialog").setCancelable(false).setPositiveButton("Positive", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "got it!", Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("Negative", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.setNeutralButton("Neutral", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "Neutral", Toast.LENGTH_SHORT).show();
}
});
AlertDialog alert = builder.create();
alert.setTitle("number picker");
alert.show();
LinearLayout.LayoutParams buttonParams;
Button buttonPositive = alert.getButton(AlertDialog.BUTTON_POSITIVE);
buttonParams = (LinearLayout.LayoutParams) buttonPositive.getLayoutParams();
buttonParams.weight = 1;
buttonParams.width = buttonParams.MATCH_PARENT;
Button buttonNegative = alert.getButton(AlertDialog.BUTTON_NEGATIVE);
buttonParams = (LinearLayout.LayoutParams) buttonNegative.getLayoutParams();
buttonParams.weight = 1;
buttonParams.width = buttonParams.MATCH_PARENT;
Button buttonNeutral = alert.getButton(AlertDialog.BUTTON_NEUTRAL);
buttonParams = (LinearLayout.LayoutParams) buttonNeutral.getLayoutParams();
buttonParams.weight = 1;
buttonParams.width = buttonParams.MATCH_PARENT;
我得到了与上面相同的结果
最佳答案
尝试如下所示的警报对话框代码:
AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(this, android.R.style.Theme_Holo_Light));
View pickerView = getLayoutInflater().inflate(R.layout.picker_dialog, null);
builder.setView(pickerView);
builder.setMessage("AlertDialog").setCancelable(false).setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "got it!", Toast.LENGTH_SHORT).show();
}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).setNeutralButton("Neutral", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "neutralize", Toast.LENGTH_SHORT).show();
}
});
AlertDialog alert = builder.create();
alert.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
Button negativeButton = ((AlertDialog) dialog).getButton(DialogInterface.BUTTON_NEGATIVE);
Button positiveButton = ((AlertDialog) dialog).getButton(DialogInterface.BUTTON_POSITIVE);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 2f);
negativeButton.setLayoutParams(params);
positiveButton.setLayoutParams(params);
negativeButton.invalidate();
positiveButton.invalidate();
}
});
alert.setTitle("number picker");
alert.show();
关于android - 如何自定义警报对话框以使按钮适合警报对话框,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34555107/