Android 开发 - UriMatcher（一个 URI 分类器）

UriMatcher

1、基本介绍

UriMatcher 是一个 URI 分类器，它能根据传给它的 URI，快速判断这个 URI 属于哪一类，然后返回一个对应的 code

2、基本使用

java 复制代码

String authority = "com.my.test";

UriMatcher uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);

uriMatcher.addURI(authority, "user", 1);
uriMatcher.addURI(authority, "user/#", 2);
uriMatcher.addURI(authority, "user/*", 3);

int result1 = uriMatcher.match(Uri.parse("content://com.my.test/user"));
int result2 = uriMatcher.match(Uri.parse("content://com.my.test/user/101"));
int result3 = uriMatcher.match(Uri.parse("content://com.my.test/user/tom"));
int result4 = uriMatcher.match(Uri.parse("content://com.my.test"));
int result5 = uriMatcher.match(Uri.parse("test content"));
int result6 = uriMatcher.match(Uri.parse("content://"));

System.out.println("result1: " + result1);
System.out.println("result2: " + result2);
System.out.println("result3: " + result3);
System.out.println("result4: " + result4);
System.out.println("result5: " + result5);
System.out.println("result6: " + result6);

复制代码

# 输出结果

result1: 1
result2: 2
result3: 3
result4: -1
result5: -1
result6: -1

java 复制代码

String authority = "com.my.test";

UriMatcher uriMatcher = new UriMatcher(100);

uriMatcher.addURI(authority, "user", 1);
uriMatcher.addURI(authority, "user/#", 2);
uriMatcher.addURI(authority, "user/*", 3);

int result1 = uriMatcher.match(Uri.parse("content://com.my.test/user"));
int result2 = uriMatcher.match(Uri.parse("content://com.my.test/user/101"));
int result3 = uriMatcher.match(Uri.parse("content://com.my.test/user/tom"));
int result4 = uriMatcher.match(Uri.parse("content://com.my.test"));
int result5 = uriMatcher.match(Uri.parse("test content"));
int result6 = uriMatcher.match(Uri.parse("content://"));

System.out.println("result1: " + result1);
System.out.println("result2: " + result2);
System.out.println("result3: " + result3);
System.out.println("result4: " + result4);
System.out.println("result5: " + result5);
System.out.println("result6: " + result6);

复制代码

# 输出结果

result1: 1
result2: 2
result3: 3
result4: -1
result5: -1
result6: -1