FilesExpand file tree

 master

/

AppUtils.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

181 lines (161 loc) · 5.86 KB

 master

/

AppUtils.java

Copy path

Top

File metadata and controls

• Code
• Blame

181 lines (161 loc) · 5.86 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

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

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.net.Uri;

import android.os.Environment;

import android.util.DisplayMetrics;

import android.view.WindowManager;

import android.view.inputmethod.InputMethodManager;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.security.MessageDigest;

import java.security.NoSuchAlgorithmException;

import java.text.DecimalFormat;

public class AppUtils {

/**

* 关闭键盘

*

* @param activity Activity

*/

public static void hideSoftInput(Activity activity) {

if (activity.getCurrentFocus() != null)

((InputMethodManager) activity

.getSystemService(Context.INPUT_METHOD_SERVICE))

.hideSoftInputFromWindow(activity.getCurrentFocus()

.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);

}

/**

* 指定小数输出

*

* @param s 输入

* @param format 小数格式，比如保留两位0.00

* @return 输出结果

*/

public static String decimalFormat(String s, String format) {

DecimalFormat decimalFormat = new DecimalFormat(format);

return decimalFormat.format(s);

}

/**

* FilePath To Bitmap

*

* @param context 上下文

* @param filePath 文件路径

*/

public static Bitmap getBitmapFromFilePath(Context context, String filePath) {

BitmapFactory.Options options = new BitmapFactory.Options();

options.inJustDecodeBounds = true;

int bmpWidth = options.outWidth;

int bmpHeight = options.outHeight;

WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

DisplayMetrics metrics = new DisplayMetrics();

windowManager.getDefaultDisplay().getMetrics(metrics);

int screenWidth = metrics.widthPixels;

int screenHeight = metrics.heightPixels;

options.inSampleSize = 1;

if (bmpWidth > bmpHeight) {

if (bmpWidth > screenWidth)

options.inSampleSize = bmpWidth / screenWidth;

} else {

if (bmpHeight > screenHeight)

options.inSampleSize = bmpHeight / screenHeight;

}

options.inJustDecodeBounds = false;

return BitmapFactory.decodeFile(filePath, options);

}

/**

* Bitmap to File

*

* @param bitmap

*/

public static String bitmap2File(Bitmap bitmap) {

File outDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);

if (!outDir.exists()) {

outDir.mkdirs();

}

File outFile = new File(outDir, System.currentTimeMillis() + ".jpg");

try {

FileOutputStream fileOutputStream = new FileOutputStream(outFile);

bitmap.compress(Bitmap.CompressFormat.JPEG, 40, fileOutputStream);

fileOutputStream.flush();

fileOutputStream.close();

} catch (Exception e) {

e.printStackTrace();

}

return outFile.getAbsolutePath();

}

/**

* 把Bitmap转Byte

*/

public static byte[] bitmap2Bytes(Bitmap bitmap) {

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);

return byteArrayOutputStream.toByteArray();

}

/**

* MD5加密

*

* @param plainText 需要加密的字符串

* @return 加密后字符串

*/

public static String md5(String plainText) {

String result = "";

try {

MessageDigest md = MessageDigest.getInstance("MD5");

md.update(plainText.getBytes());

byte b[] = md.digest();

int i;

StringBuffer buf = new StringBuffer("");

for (int offset = 0; offset < b.length; offset++) {

i = b[offset];

if (i < 0)

i += 256;

if (i < 16)

buf.append("0");

buf.append(Integer.toHexString(i));

}

result = buf.toString().toLowerCase();// 32位的加密（转成小写）

buf.toString().substring(8, 24);// 16位的加密

} catch (NoSuchAlgorithmException e) {

e.printStackTrace();

}

return result;

}

/**

* 安装apk

*

* @param context 上下文

* @param path 文件路劲

*/

public static void installAPK(Context context, String path) {

Intent intent = new Intent();

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setAction(android.content.Intent.ACTION_VIEW);

intent.setDataAndType(Uri.fromFile(new File(path)), "application/vnd.android.package-archive");

context.startActivity(intent);

}

/**

* 直接拨号，需要增加CALL_PHONE权限

*

* @param context 上下文

* @param phone 手机号码

*/

public static void actionCall(Context context, String phone) {

Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phone));

intent.setAction(Intent.ACTION_CALL);// 直接拨号

context.startActivity(intent);

}

/**

* 跳到拨号盘-拨打电话

*

* @param context 上下文

* @param phone 手机号码

*/

public static void actionDial(Context context, String phone) {

Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phone));

intent.setAction(Intent.ACTION_DIAL);// 拨号盘

context.startActivity(intent);

}

}