7

我试图在单击时更改文本视图的背景。

例如,如果单击文本视图,则背景变为黄色并保持黄色,直到再次单击。然后它返回到其默认背景。

目前,textview 按下时背景会发生变化,但在释放时会恢复为默认值。

我已经在互联网上搜索解决方案,并查看了 stackoverflow 上的所有解决方案,但仍然没有解决方案。

可绘制/选择器.xml:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/circle_on" android:state_enabled="true" android:state_pressed="true"/>
     <item android:drawable="@drawable/circle_on" android:state_enabled="true" android:state_focused="true"/>
     <item android:drawable="@drawable/circle_off"/>
</selector>

可绘制/circle_on:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
   android:shape="oval" >
   <stroke
     android:width="2dp"
     android:color="@color/Gray" >
   </stroke>
   <solid android:color="@color/LightBlue" />
</shape>

可绘制/circle_off:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
   android:shape="oval" >
    <stroke
        android:width="2dp"
        android:color="@color/Gray" >
    </stroke>
    <solid android:color="@color/WhiteSmoke" />
</shape>

文本视图:

  <TextView
                style="@style/RoundText"
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:background="@drawable/repeat_selector"
                android:clickable="true"
                android:text="Sun" >
            </TextView>

文字样式:

  <style name="RoundText">
    <item name="android:textColor">#555555</item>
    <item name="android:gravity">center_vertical|center_horizontal</item>
    <item name="android:textSize">15sp</item>
    <item name="android:textStyle">bold</item>
    <item name="android:fontFamily">sans-serif-thin</item>
</style>

有人可以告诉我我做错了什么

谢谢。

我的解决方案:

    public class PlanTextView extends TextView  {

private boolean _stateChanged;
private boolean _selected;

public boolean is_stateChanged() {
    return _stateChanged;
}

public void set_stateChanged(boolean _stateChanged) {
    this._stateChanged = _stateChanged;
}

public boolean is_selected() {
    return _selected;
}

public void set_selected(boolean _selected) {
    this._selected = _selected;
}

public PlanTextView(Context context) {
    super(context);
}

public PlanTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public PlanTextView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
}
 }


<com.plan.views.PlanTextView
                android:id="@+id/mon"
                style="@style/RoundText"
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:background="@drawable/circle_off"
                android:clickable="true"
                android:onClick="PlanOnClick"
                android:text="mon" >
 </com.plan.views.PlanTextView>

活动

public void PlanOnClick(View v) {
    PlanTextView view = (PlanTextView)v;
    if (view.is_stateChanged()) {
        view.setBackgroundResource(R.drawable.circle_off);
        view.set_selected(false);
    } else {
        view.setBackgroundResource(R.drawable.circle_on);
        view.set_selected(true);
    }
    view.set_stateChanged(!view.is_stateChanged());
}
4

5 回答 5

11

除了上面的答案,也试试这个代码片段。

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

    <item android:state_pressed="true">
      <shape>
        <gradient android:endColor="#AD1F2D" android:startColor="#AD1F2D" />
      </shape>
    </item>
    <item android:state_focused="true">
      <shape>
        <gradient android:endColor="#ff4b46" android:startColor="#ff4b46" />
      </shape>
    </item>
    <item>
      <shape>
        <gradient android:endColor="#ff4b46" android:startColor="#ff4b46" />
      </shape>
    </item>

</selector>

我希望这对每个人都有用。

于 2014-02-21T08:07:34.083 回答
7

如果单击文本视图,则背景变为黄色并保持黄色,直到再次单击。然后它返回到其默认背景。

这是一个逻辑问题,因为您需要在单击侦听器中保持当前的单击状态。(盲编码):

textView.setOnClickClickListener(new View.OnClickListener() {
    private boolean stateChanged;
    public void onClick(View view) {
        if(stateChanged) {
            // reset background to default;
            textView.setBackgroundDrawable(circleOffDrawable);
        } else {
            textView.setBackgroundDrawable(circleOnDrawable);
        }
        stateChanged = !stateChanged;
    }
});

为了改进答案,您应该stateChanged在活动中保留标志并在活动重新创建过程中保留其值 - 如果用户轮换活动。(如果其参数不为空,则将标志存储onSaveInstanceState并恢复。)onCreate

于 2013-09-21T19:30:09.030 回答
1

为您的Textview使用onclicklistner()

在您的听众中使用

      txt.setBackgroundColor(Color.RED); 

例如

    if(count==1)
    {
      txt.setBackgroundColor(Color.YELLOW); 
      count=0;
      } 
       else
    if(count==0)
      { 
         txt.setBackgroundColor(Color.RED); 
       count==1;
          }
于 2013-09-21T19:30:40.423 回答
0

onCreate()方法中,

LinearLayout(or Whatever layout you are using) ll = (LinearLayout)findViewById(R.id.mainlay);

并将监听器设置为textview

TextView tv1 = (TextView)findViewById(R.id.maintext);

tv1.setOnClickListener(this);

最后点击:

@Override
public void onClick(View v) {

ll.setBackgroundColor(whatever color);
or If you want to change the text background color,

tv1.setBackground(whatevercolor);

}

希望这可以帮助。

于 2013-09-21T19:47:12.860 回答
0

万一有人需要它(Kotlin)。这可以在单击时切换 TextView 的背景和文本颜色。

ToggleTextView.kt

class ToggleTextView : AppCompatTextView {
    private var mfilterSelected = false
    constructor(context: Context, attrs: AttributeSet?, defStyle: Int): super(context, attrs, defStyle) {}`

    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs) {}

    constructor(context: Context, checkableId: Int) : super(context) {}

    constructor(context: Context) : super(context) {}

    fun isFilterSelected(): Boolean {
        return mfilterSelected
    }

    fun toggleFilterState() {
        if (mfilterSelected) {
            background = resources.getDrawable(R.drawable.toggle_1)
            setTextColor(resources.getColor(R.color.gray))
            mfilterSelected = false
        } else {
            background = resources.getDrawable(R.drawable.toggle_2)
            setTextColor(resources.getColor(R.color.white))
            mfilterSelected = true
        }
    }
}

--toggle_1.xml--
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<stroke android:width="1dp" android:color="@color/gray" />
<corners android:radius="10dp" />
<solid android:color="@color/white" />
</shape>
--toggle_2.xml--
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<corners android:radius="10dp" />
<solid android:color="@color/orange" />
</shape>
Click listener in your Activity/Fragment:
yourTextView?.setOnClickListener {
            yourTextView.toggleFilterState()
        }
Usage in our xml layout file:
<ToggleTextView
                android:id="@+id/yourTextView"
                android:background="@drawable/toggle_1"
                android:clickable="true"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:lines="1"/>
于 2021-02-25T19:45:03.770 回答