标签: android-alertdialog

最近我从支持库切换到com.google.android.material:material:1.0.0

但是现在我有一个问题,在这个页面上有一个注释https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md

注意:使用"材质成分"主题可启用自定义视图填充程序,该填充程序将使用"材质"对应项替换默认组件.目前,这仅使用MaterialButton替换Button XML组件.

我正在使用的主题

Theme.MaterialComponents.Light.NoActionBar

它完全按照它在说明中所说的,它将AlertDialog按钮替换为MaterialButtons,但问题是默认情况下MaterialButtons是彩色背景,现在按钮看起来像这样:

我怎样才能让它们再次无边界和无背景？

PS我正在使用警报构建器来创建警报对话框:

android.app.AlertDialog.Builder

是否可以在Android应用程序中只显示图像弹出/启动？它类似于覆盖AlertDialog的普通视图,因此它只包含一个图像而不包含任何其他内容.

解决方案: 感谢@ blessenm的帮助,我找到了答案.将活动屏蔽为对话似乎是理想的方式.以下是我使用的代码.可以根据需要调用此对话框样式活动,与启动新活动的方式相同

ImageDialog.java

public class ImageDialog extends Activity {

    private ImageView mDialog;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.your_dialog_layout);



        mDialog = (ImageView)findViewById(R.id.your_image);
        mDialog.setClickable(true);


        //finish the activity (dismiss the image dialog) if the user clicks 
        //anywhere on the image
        mDialog.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
        });

    }
}

your_dialog_layout.xml

<?xml version="1.0" encoding="UTF-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image_dialog_root" 
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent"
    android:gravity = "center">

    <ImageView
        android:id="@+id/your_image"  
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src = "@drawable/your_image_drawable"/>

</FrameLayout>

为活动设置以下样式以实现此目的至关重要:

styles.xml

  <style name="myDialogTheme" …

我正在尝试DialogFragment使用自定义视图创建AlertDialog.必须从xml中扩充此视图.在我的DialogFragment班上,我有:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    return new AlertDialog.Builder(getActivity())
        .setTitle("Title")
        .setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, null))
        .setPositiveButton(android.R.string.ok, this)
        .setNegativeButton(android.R.string.cancel, null)
        .create();
}

我尝试过其他通胀方法,.setView()例如:

.setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getView(), false))

和

.setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getTargetFragment().getView(), false))

在显示此对话框的片段中设置目标片段之后.

所有这些尝试使我的自定义视图膨胀都会导致以下异常:

E/AndroidRuntime(32352): android.util.AndroidRuntimeException: requestFeature() must be called before adding content
E/AndroidRuntime(32352):        at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:214)
E/AndroidRuntime(32352):        at com.android.internal.app.AlertController.installContent(AlertController.java:248)
E/AndroidRuntime(32352):        at android.app.AlertDialog.onCreate(AlertDialog.java:314)
E/AndroidRuntime(32352):        at android.app.Dialog.dispatchOnCreate(Dialog.java:335)
E/AndroidRuntime(32352):        at android.app.Dialog.show(Dialog.java:248)
E/AndroidRuntime(32352):        at android.support.v4.app.DialogFragment.onStart(DialogFragment.java:339)
E/AndroidRuntime(32352):        at android.support.v4.app.Fragment.performStart(Fragment.java:1288)
E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:873)
E/AndroidRuntime(32352):        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1041)
E/AndroidRuntime(32352):        at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:625)
E/AndroidRuntime(32352):        at …

如何使用时,将文本设置为粗体的一部分AlertDialog的setMessage()？添加<b>和</b>我String不起作用.

我在Eclipse中创建了一个新的应用程序,目标是Jelly Bean.这是所有自动创建的代码.清单将应用程序主题设置为AppName:

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    . . . 

对于值dir中的样式,它转换为AppBaseTheme:

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="android:Theme.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. …

我打算用layout_weight = 1创建3个按钮,对自定义对话框不感兴趣.所以我写了下面的代码.它不工作.总是是按钮给我null.这段代码怎么了？

  AlertDialog dialog= new AlertDialog.Builder(this).create();
            dialog.setIcon(R.drawable.alert_icon);
            dialog.setTitle("title");
            dialog.setMessage("Message");
            dialog.setButton(AlertDialog.BUTTON_POSITIVE,"Yes", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface arg0, int arg1) {
                                                }
            });
            Button yesButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
            Log.w("Button",""+yesButton);//here getting null
            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT, 1f);
            yesButton.setLayoutParams(layoutParams);
            dialog.show();

此致,Android开发人员.

我创建了包含4个按钮的AlertDialog

OptionDialog = new AlertDialog.Builder(this);
        OptionDialog.setTitle("Options");
        LayoutInflater li = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View v = li.inflate(R.layout.options, null, false);
        background = (Button) v.findViewById(R.id.bkgSpinnerLabel);
        SoundVib = (Button) v.findViewById(R.id.SoundVibSpinnerLabel);

        OptionDialog.setView(v);
        OptionDialog.setCancelable(true);
        OptionDialog.setNeutralButton("Ok",
                new DialogInterface.OnClickListener() {

                    public void onClick(DialogInterface arg0, int arg1) {
                    }
                });
        background.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                SetBackground();
             // here I want to dismiss it after SetBackground() method 
            }
        });


        SoundVib.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Intent soundVibIntent = new Intent(SebhaActivity.this, EditPreferences.class);
                startActivity(soundVibIntent);
            }
        });

        OptionDialog.show();

我想在SetBackground()方法之后解雇它,我该怎么做呢？提前致谢.

点击PositiveButton后我可以不解雇我的AlertDialog吗？

我想继续在对话框中显示我的ArrayAdapter listWords上的更新内容.

这是我的代码.

AlertDialog.Builder sayWindows = new AlertDialog.Builder(MapActivity.this);

final EditText saySomething = new EditText(MapActivity.this);

sayWindows.setPositiveButton("ok",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    say = userName + " Says: "+saySomething.getText();
                    showPosition.setText(say);                      
                }
            });

sayWindows.setNegativeButton("cancel",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                }
            });

sayWindows.setAdapter(listWords, null);
sayWindows.setView(saySomething);
sayWindows.create().show();

我需要AlertDialog使用自定义视图.a的消息AlertDialog有一个默认的填充但是当我设置一个视图它没有填充时,我想要获得与默认消息相同的填充.我正在使用扩展Holo主题的风格(如果这是相关的).

AlertDialog.Builder builder = new AlertDialog.Builder(PlaylistListView.this.getContext());
builder.setTitle("Title");
builder.setView(inflate(context, R.layout.music_player_create_dialog, null));
builder.setPositiveButton("OK", null);
builder.setNegativeButton("Cancel", null);
builder.show();

这是内容的布局:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/abc_dialog_padding_material"
    android:paddingRight="@dimen/abc_dialog_padding_material"
    android:paddingTop="@dimen/abc_dialog_padding_top_material"
    android:paddingBottom="@dimen/abc_dialog_padding_top_material">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Title:"/>

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="bottom"
        android:background="@null"
        android:layout_marginTop="20dp"/>
    <View
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/divider"/>
</LinearLayout>

我编写了一个显示弹出对话框的android代码,但是我想将背景颜色从黑色更改为白色,然后是写入的颜色.

这是对话框的代码:

mPrefs = PreferenceManager.getDefaultSharedPreferences(this);

    Boolean welcomeScreenShown = mPrefs.getBoolean(welcomeScreenShownPref, false);

    if (!welcomeScreenShown) {


        String whatsNewText = getResources().getString(R.string.Text);
        new AlertDialog.Builder(this).setMessage(whatsNewText).setPositiveButton(
                R.string.ok, new DialogInterface.OnClickListener(){
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        }).show();
        SharedPreferences.Editor editor = mPrefs.edit();
        editor.putBoolean(welcomeScreenShownPref, true);
        editor.commit(); // Very important to save the preference
    }