Android手機分辨率測試程序

Android手機分辨率測試程序可以測試出個人手機設備的分辨率，屬於哪種dpi級別，以便開發參考。

main.xml

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3. android:layout_width="fill_parent"
4. android:layout_height="fill_parent"
5. android:orientation="vertical" >
7. <TextView
8. android:id="@+id/screenSize"
9. android:layout_width="fill_parent"
10. android:layout_height="wrap_content"
11. android:text="@string/screenSize"
12. />
14. <EditText
15. android:id="@+id/size"
16. android:layout_width="fill_parent"
17. android:layout_height="wrap_content"
18. android:inputType="numberDecimal"
19. />
20. <Button
21. android:id="@+id/submit"
22. android:layout_width="fill_parent"
23. android:layout_height="wrap_content"
24. android:text="@string/submit"
25. />
26. <EditText
27. android:id="@+id/showWidth"
28. android:layout_width="fill_parent"
29. android:layout_height="wrap_content"
30. android:inputType="text"
31. android:editable="false"
32. />
34. <EditText
35. android:id="@+id/showDPI"
36. android:layout_width="fill_parent"
37. android:layout_height="wrap_content"
38. android:inputType="text"
39. android:editable="false"
40. />
44. </LinearLayout>

1. <?xml version="1.0" encoding="utf-8"?>
2. <resources>
3. <string name="hello">Hello World, AndroidDPI!</string>
4. <string name="app_name">AndroidDPI</string>
5. <string name="screenSize">輸入該設備的屏幕大小：</string>
6. <string name="submit">確認</string>
7. </resources>

1. package com.shine.android;
3. import android.app.Activity;
4. import android.os.Bundle;
5. import android.util.DisplayMetrics;
6. import android.view.View;
7. import android.view.View.OnClickListener;
8. import android.widget.Button;
9. import android.widget.EditText;
11. public class AndroidDPI extends Activity {
12. @Override
13. public void onCreate(Bundle savedInstanceState) {
14. super.onCreate(savedInstanceState);
15. setContentView(R.layout.main);
16. final EditText size = (EditText) findViewById(R.id.size);
17. final EditText showWidth = (EditText) findViewById(R.id.showWidth);
18. final EditText showDPI = (EditText) findViewById(R.id.showDPI);
19. Button submit = (Button) findViewById(R.id.submit);
21. submit.setOnClickListener(new OnClickListener() {
22. @Override
23. public void onClick(View v) {
24. if(size.length() == 0){
25. size.setText("請輸入該屏幕的尺寸");
26. }else {
27. DisplayMetrics dm = new DisplayMetrics();
28. getWindowManager().getDefaultDisplay().getMetrics(dm);
29. int width = dm.widthPixels;
30. int height =dm.heightPixels;
31. float sizeInt = Float.parseFloat(size.getText().toString());
32. showWidth.setText("手機屏幕分辨率為："+width+"*"+height);
33. double dpi = Math.sqrt(height*height +width*width)/sizeInt;
34. String dpiType = "";
35. if(dpi >320){
36. dpiType = "屬於xhdpi";
37. }else if(dpi>240){
38. dpiType = "屬於hdpi";
39. }else if(dpi>160){
40. dpiType = "屬於mdpi";
41. }else if(dpi>120){
42. dpiType = "屬於ldpi";
43. }
44. showDPI.setText("手機DPI是:"+ dpi+ ","+ dpiType);
45. }
46. }
47. });
48. }
49. }

更多Android相關信息見Android 專題頁面 http://www.linuxidc.com/topicnews.aspx?tid=11