Question

在Android Studio 3.5中 Android 6.0

这是我的风格：

 <style name="buttonEnableStyle" parent="Widget.MaterialComponents.Button.UnelevatedButton">
        <item name="android:textColor">@color/text_color_states_materialbuttons</item>
        <item name="backgroundTint">@color/color_states_materialbutton</item>
        <item name="android:textAppearance">@style/byttonTexAppearanceStyle</item>
    </style>



  <style name="buttonClickStyle" parent="@style/Widget.MaterialComponents.Button">
        <item name="android:textColor">#ffc400</item>
        <item name="backgroundTint">#3F3F3F</item>
    </style>

xml布局：

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>

        <import type="android.view.View" />       

    </data>


      <com.google.android.material.button.MaterialButton
                android:id="@+id/buttonStartSearchBluetooth"
                style="@style/buttonEnableStyle"
                android:layout_width="0dp"
                android:layout_height="@dimen/button_height"
                android:layout_margin="@dimen/button_margin"
                android:onClick="onClickButtonStartSearch"
                android:text="@string/start_find"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent" />

我尝试通过编程方式在MaterialButton上更改样式，

 TextViewCompat.setTextAppearance(
                    dataBinding.buttonStartSearchBluetooth,
                    R.style.buttonClickStyle
                )

但是结果是它只能更改文本颜色。但是背景颜色不变

Answer 1

方法public void addButtonClicked(View view){ String naStr = etName.getText().toString(); String phStr = etPhone.getText().toString(); if(naStr.isEmpty() || phStr.isEmpty()){ Toast.makeText(getApplicationContext(),"Please, fill-in missing data", Toast.LENGTH_LONG).show(); return; } db.execSQL("insert into "+ dbHandler.TABLE_NAME + "(" + dbHandler.COLUMN_NAME + ","+ dbHandler.COLUMN_PHONE +") VALUES (?,?)", new String[] {naStr,phStr}); String tstMsg; tstMsg = "Name: " + naStr + ", Phone: " + phStr + " is inserted"; Toast.makeText(getApplicationContext(),tstMsg,Toast.LENGTH_LONG).show(); etName.setText(""); etPhone.setText(""); } I want to delete specific by id public void delTsk(View view){ String id = etID.getText().toString(); if(id.isEmpty()){ Toast.makeText(getApplicationContext(),"Please, fill-in missing data",Toast.LENGTH_LONG).show(); return; }仅更改{strong>文本外观，而不更改背景或setTextAppearance的样式。

要更改Button中的颜色和textAppearance，可以使用类似以下内容的方法：

Button

只是关于//For background color button.setBackgroundTintList(ContextCompat.getColorStateList(this,R.color...)); // or button.setBackgroundColor(ContextCompat.getColor(this,R.color....)) // For TextAppearance button.setTextAppearance(..);的注释。
它定义了以下属性：

TextAppearance

检查this post以获得更多详细信息。

不通过TextViewCompat.setTextAppearance更改样式“即时”

1 个答案: