Android修改默认浏览器为其他浏览器

public class MainActivity extends Activity {

private static final String TAG = "MainActivity";

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  PackageManager packageManager = this.getPackageManager();
  String str1 = "android.intent.category.DEFAULT";
  String str2 = "android.intent.category.BROWSABLE";
  String str3 = "android.intent.action.VIEW";

  // 设置默认项的必须参数之一,用户的操作符合该过滤器时,默认设置起效
  IntentFilter filter = new IntentFilter(str3);
  filter.addCategory(str1);
  filter.addCategory(str2);
  filter.addDataScheme("http");
  // 设置浏览页面用的Activity
  ComponentName component = new ComponentName("com.UCMobile",
    "com.UCMobile.main.UCMobile");

  Intent intent = new Intent(str3);
  intent.addCategory(str2);
  intent.addCategory(str1);
  Uri uri = Uri.parse("http://");
  intent.setDataAndType(uri, null);

  // 找出手机当前安装的所有浏览器程序
  List<ResolveInfo> resolveInfoList = packageManager
    .queryIntentActivities(intent,
      PackageManager.GET_INTENT_FILTERS);

  int size = resolveInfoList.size();
  ComponentName[] arrayOfComponentName = new ComponentName[size];
  for (int i = 0; i < size; i++) {
   ActivityInfo activityInfo = resolveInfoList.get(i).activityInfo;
   String packageName = activityInfo.packageName;
   String className = activityInfo.name;

   Log.d(TAG, "packageName  " + packageName);
   Log.d(TAG, "className  " + className);

   // 清除之前的默认设置
   packageManager.clearPackagePreferredActivities(packageName);
   ComponentName componentName = new ComponentName(packageName,
     className);
   arrayOfComponentName[i] = componentName;
  }
  packageManager.addPreferredActivity(filter,
    IntentFilter.MATCH_CATEGORY_SCHEME, arrayOfComponentName,
    component);

}

记得 <uses-permission android:name="android.permission.SET_PREFERRED_APPLICATIONS" /> 及系统签名噢