自定義textview 實現圓角一半純色背景一半透明背景效果

效果圖：

image.png

實現方法：

package com.example.weiget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.example.textview.R;


/**
 * <pre>
 *     author : lzy
 *     e-mail : zanyang.lin@newbeeair.com
 *     time   : 2017/05/08
 *     desc   :
 * </pre>
 */

public class CustomTextView extends LinearLayout {
    private TextView tv;
    private TextView tvText;

    public CustomTextView(Context context) {
        this(context, null);
    }

    public CustomTextView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CustomTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initView(context);
    }


    private void initView(Context context) {

        LayoutInflater.from(context).inflate(R.layout.custom_textview_layout, this, true);
        tv = (TextView) findViewById(R.id.tv_pm25);
        tvText = (TextView) findViewById(R.id.tv_text);
    }

    public void setText(String text) {
        tv.setText(text);
    }

    public void setTextSize(float size) {
        tv.setTextSize(size);
        tvText.setTextSize(size);
    }

}

<?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="wrap_content"
    android:background="@drawable/border"
    android:gravity="center"
    android:orientation="horizontal"
    android:padding="0dp">


    <TextView
        android:id="@+id/tv_text"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="4"
        android:background="@drawable/border_outer"
        android:gravity="center"
        android:text="室外"
        android:textColor="@color/blue_30b7f1"
        android:textSize="6sp" />

    <TextView
        android:id="@+id/tv_pm25"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_toRightOf="@+id/tv_text"
        android:layout_weight="3"
        android:gravity="center"
        android:text="54%"
        android:textColor="@color/white_ffffff"
        android:textSize="6sp" />


</LinearLayout>

drawable :

• 圓角邊框

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:radius="15dp" />
    <size android:height="30dp" />
    <stroke
        android:width="0.5dp"
        android:color="@color/white_ffffff" />
</shape>

• 圓角純色背景 左邊圓角右邊直角

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/white_ffffff" />
    <corners
        android:bottomLeftRadius="15dp"
        android:bottomRightRadius="0dp"
        android:topLeftRadius="15dp"
        android:topRightRadius="0dp" />
    <size android:height="30dp" />
    <stroke
        android:width="0.5dp"
        android:color="#ffffff" />
    <padding
        android:bottom="0dp"
        android:left="3dp"
        android:right="2dp"
        android:top="0dp" />
</shape>

項目源碼： zanyang/CustomTextview