在android的循环进度中设置值

Question

如何在我的循环进度中呈现“百分比”的值？ 这段代码主要计算wifi信号强度并在textview中显示，但我也想在圆形进度条中显示。

主要活动

public static int getWifiStrengthPercentage(Context context) {
    try {
        WifiManager wifiManager = (WifiManager) context
                .getSystemService(Context.WIFI_SERVICE);
        int rssi = wifiManager.getConnectionInfo().getRssi();
        int level = WifiManager.calculateSignalLevel(rssi, 10);
        int percentage = (int) ((level / 10.0) * 100);
        tv.setText(percentage + " %");
        return percentage;
    } catch (Exception e) {
        return 0;
    }
}
}

xml

<ProgressBar
    android:id="@+id/progressBar1"
    android:layout_width="wrap_content"
    android:indeterminateDrawable="@drawable/progress"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/button1"
    android:layout_centerVertical="true"
    android:layout_marginLeft="18dp" />

prgress.xml

 <?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="0"
android:toDegrees="900" >

<shape
    android:innerRadiusRatio="2.3"
    android:shape="ring"
    android:thickness="3.8sp" >
    <solid android:color="#F3E2A9" />
</shape>

</rotate>

Answer 1

要在圆形进度条中显示wifi信号强度，只需在进度条中设置，然后在圆形进度条中间取一个TextView即可。

XML：

<ProgressBar
android:id="@+id/progressBar1"
android:layout_width="wrap_content"
android:indeterminateDrawable="@drawable/progress"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_centerVertical="true"
android:layout_marginLeft="18dp" />

<TextView
android:id="@+id/tvprogress"
android:layout_width="wrap_content"  
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true">

在代码中：

public static int getWifiStrengthPercentage(Context context) {
      try {
        WifiManager wifiManager = (WifiManager) context
                .getSystemService(Context.WIFI_SERVICE);
        int rssi = wifiManager.getConnectionInfo().getRssi();
        int level = WifiManager.calculateSignalLevel(rssi, 10);
        int percentage = (int) ((level / 10.0) * 100);
        progressBar1.setProgress(percentage);
        tvprogress.setText(String.valueof(percentage) + " %");
        return percentage;
    } catch (Exception e) {
        return 0;
    }
}

希望对你有帮助。