Question

I am using this code to move and resize the button in a relative layout...

Program crashes when I touch on the screen, what can be the reason.?

var vfs = require('vinyl-fs');

gulp.task('myTask', [], function() {
  vfs.src('static/img/**/*')
  .pipe(vfs.dest('dist/img'))
)};

I have tried making relative layout as just RelativeLayout type instead of ViewGroup, still didnot work. Guidance,...thank you in advance..

    ViewGroup relativeL;


onCreate(){
relativeL = (ViewGroup) findViewById(R.id.relativeLayout);
    relativeL.setOnTouchListener(new RelativeLayout.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            methodMove();
            return true;
        }
    });
}

public void methodMove(){
    View button = findViewById(R.id.helloButton);

    TransitionManager.beginDelayedTransition(relativeL);

    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
    relativeL.setLayoutParams(layoutParams);
    button.setLayoutParams(new RelativeLayout.LayoutParams(130,250));
}

Answer 1

我是移动设备，我无法检查代码，但您可以尝试更改

button.setLayoutParams(new RelativeLayout.LayoutParams(130,250));

要

button.setLayoutParams(new FrameLayout.LayoutParams(130,250));

java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams cannot be cast to android.widget.FrameLayout$LayoutParams

1 个答案: