利用不同 values 文件下的 dimens.xml 适配安卓屏幕

1
2
3
 Configuration config = getResources().getConfiguration();
int
smallestScreenWidth = config.smallestScreenWidthDp;

1
2
3
<?xml version="1.0" encoding="utf-8"?>
<resources>
</resources>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
package com.example.hepan.adaptation;
/**
* Created by hepan on 2018/5/25.
*/
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.PrintWriter;
public class GenerateDimen {
public static void genDimen() {
StringBuilder swdef = new StringBuilder();
PrintWriter out;
try {
swdef.append("<?xml version="1.0" encoding="utf-8"?>n" +
"<resources>");
double value;
for (int i = 0; i < 500; i++) {
//这里控制对应转换的值，如果是标准尺寸就一对一转换
value = (i + 1) * 1;
value = Math.round(value * 100) / 100;
swdef.append("<dimen name="dp" + (i + 1) + "">" + value + "dp</dimen>rn");
}
swdef.append("</resources>");
//这里是文件名，1 注意修改 sw 后面的值，和转换值一一对应
2 文件夹和文件要先创建好否则要代码创建
String filedef = "./app/src/main/res/values-sw380dp/dimens.xml";
out = new PrintWriter(new BufferedWriter(new FileWriter(filedef)));
out.println(swdef.toString());
out.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
}
}
public static void main(String[] args) {
genDimen();
}
}

1
2
3
4
5
6
7
8
9
...
<dimen name="dp379">379.0dp</dimen>
<dimen name="dp380">380.0dp</dimen>
<dimen name="dp381">381.0dp</dimen>
<dimen name="dp382">382.0dp</dimen>
<dimen name="dp383">383.0dp</dimen>
<dimen name="dp384">384.0dp</dimen>
<dimen name="dp385">385.0dp</dimen>
....

1
2
3
4
5
6
7
8
9
10

for (int i = 0; i < 500; i++) {
//这里控制对应转换的值，如果是标准尺寸就一对一转换
value = (i + 1) * 420/380;
value = Math.round(value * 100) / 100;
swdef.append("<dimen name="dp" + (i + 1) + "">" + value + "dp</dimen>rn");
}
swdef.append("</resources>");
//这里是文件名，注意修改 sw 后面的值，和转换值一一对应
String filedef = "./app/src/main/res/values-sw420dp/dimens.xml";

1
2
3
4
5
6
7
8
9
10
11
12
13
14

....
<dimen name="dp380">420.0dp</dimen>
<dimen name="dp381">421.0dp</dimen>
<dimen name="dp382">422.0dp</dimen>
<dimen name="dp383">423.0dp</dimen>
<dimen name="dp384">424.0dp</dimen>
<dimen name="dp385">425.0dp</dimen>
<dimen name="dp386">426.0dp</dimen>
<dimen name="dp387">427.0dp</dimen>
<dimen name="dp388">428.0dp</dimen>
<dimen name="dp389">429.0dp</dimen>
<dimen name="dp390">431.0dp</dimen>
....

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.hepan.adaptation.MainActivity">
<!--因为基准是sw380,所以dp190代表一半-->
<TextView
android:layout_width="@dimen/dp190"
android:layout_height="30dp"
android:background="#ff0000"
android:gravity="center"
android:text="我占据了一半"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.469" />
<!--中间线，在design模式下可确认textview占一半位置-->
<android.support.constraint.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.5" />
</android.support.constraint.ConstraintLayout>