Android pit god

The following is the pit I stepped on, hope to see this will allow you to step on my head over it 🙂

2. In XML, you’re going to use a View, not a View

3. Stop resource, pop, keyboard in onPause(), not onStop()

4. Js calls Android methods. The parameter of this method should be String. Otherwise, there are multiple JS methods calling Android methods in H5 page, and the parameter is int = 0.

@javascriptInterface public void lookUserDetailedInfor(String ID) {// In the corresponding JS douQuJS.lookUserDetailedInfor(data); The H5 page contains multiple js methods that call Android methods, and the parameter is int = 0. NSLog.w(TAG,"WebViewFragment{} ... lookUserDetailedInfor() --> id = " + id);
    }
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5. SetClickable (True) does not work: setClickable(false) must be placed after setOnClickListener, otherwise it will not work

6. When a view is not displayed, consider whether ButterKnife creates a field XXView along with new XXView();

7. Git pull generates an error message when updating a local code:

error: Your local changes to the following files would be overwritten by merge:
        app/src/main/java/com/blankj/androidutilcode/activity/KeyboardActivity.java
Please commit your changes or stash them before you merge.
Aborting
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Solutions:

git checkout -f
git pull
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8. Sometimes scrollTo() doesn’t work when you don’t play the keyboard. Try this:

    HandlerUtil.runOnUiThread(new Runnable() {
        @Override
        public void run() { KeyboardUtil.showSoftInput(et_new_label); }}, 100);Copy the code

9. Check the dependencies of the project.

./gradlew -q dependencies <module-name>:dependencies --configuration compile
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10. ScrollView listens setOnScrollChangeListener Y changes the position of the titleBar of transparency, sometimes will affect the impression of other pages, very strange. Try this:

rl_family_title_bar.setBackgroundColor(Color.WHITE); Rl_family_title_bar.getbackground ().setalpha (0); rl_familY_titLE_bar.getBackground (). nsv_root.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
        @Override
        public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
            int alpha = 255 * scrollY / LocalDisplay.dp2px(257);
            if (alpha < 0) {
                alpha = 0;
            } else if (alpha > 255) {
                alpha = 255;
            }
            rl_family_title_bar.getBackground().setAlpha(alpha);
            if(alpha < 128) {
                tv_title.setTextColor(Color.WHITE);
                iv_back.setImageResource(R.drawable.btn_menu_back_white);
            } else{ tv_title.setTextColor(Color.BLACK); iv_back.setImageResource(R.drawable.btn_menu_back); }}});Copy the code

11. The SurfaceView flash screen is faulty

getWindow().setFormat(PixelFormat.TRANSLUCENT); // in case: Android SurfaceView flash screen problemCopy the code