Xposed 替换Textview文案

这篇主要写下替换Textview的文案，主要实现比如脱敏。

``

public class TextViewHook {
    private static final String TAG = "TextViewHook";

    public static void hook(XC_LoadPackage.LoadPackageParam lpparam) {
        Log.i(TAG, "hook: start");
        try {
            final Class clazz = XposedHelpers.findClass("android.widget.TextView", lpparam.classLoader);
            XposedHelpers.findAndHookMethod(clazz, "setText", CharSequence.class, TextView.BufferType.class, new XC_MethodReplacement() {
                @Override
                protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
                    Object[] args = param.args;
                    CharSequence arg = (CharSequence) args[0];
                    TextView.BufferType arg1 = (TextView.BufferType) args[1];
                    Log.e(TAG, "replaceHookedMethod: arg=" + arg + ";arg1=" + arg1);
                    // TODO: 23-9-28 替换textview的文本，
                    if (!TextUtils.isEmpty(arg)){
                        args[0] = "替换成功";
                    }
                    return XposedBridge.invokeOriginalMethod(param.method,param.thisObject,args);
                }
            });
        } catch (Throwable e) {
            Log.e(TAG, "hook: ", e);
        }
        Log.i(TAG, "hook: end");
    }
}

如上述代码，只要textview中设置的文本不为空，我们就将其替换成"替换成功".

我测试时主要用的微信测试，可以看下效果：

1：微信小程序入口，文本全部被替换成了替换成功。

2：