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我創建了一個包含我所有活動佈局的scrollView。在scrollview中,我創建了一個垂直方向的線性佈局,並在其內部使用for-loop創建了一些包含圖像和textview的相對佈局。我需要滾動視圖,因爲在某些時候,我可以在佈局中有許多圖像,並且屏幕需要滾動。 這是好的,所有工作都正常。我的問題在之後。正如你可以在代碼的底部看到的,我創建了包含一個簡單按鈕的最後一個相對佈局。我的問題是,這種佈局不會停留在頁面的底部,而是會在與屏幕的關係上上下移動。因此,例如,如果只有一個圖像,則最後一個相對佈局位於頁面頂部,並附加到圖像上。如果有許多圖像,它位於頁面的底部。 我想要做的是,最後的相對佈局總是保持在頁面的底部,同樣如果屏幕內只有一個圖像。 如何修改我的代碼以實現我的目標?以編程方式修復頁面底部的相對佈局
//SCROLL VIEW
ScrollView scrollView = new ScrollView(this); //create a new scrollView
scrollView.setBackground(getResources().getDrawable(R.drawable.background)); //give the background gradient
scrollView.setLayoutParams(new ScrollView.LayoutParams(ScrollView.LayoutParams.MATCH_PARENT, //set the main params about the dynamic size of the scrollView
ScrollView.LayoutParams.MATCH_PARENT));
scrollView.setPadding(0, 20, 0, 0);
//LINEAR LAYOUT
LinearLayout linearLayout = new LinearLayout(this); //create a new linearLayout
linearLayout.setOrientation(LinearLayout.VERTICAL); //set the layout orientation
linearLayout.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
for (i=0; i<= 3; i++) {
//RELATIVE LAYOUT
RelativeLayout relativeLayout = new RelativeLayout(this); //create a new relative layout
relativeLayout.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, //set main params about the width and height
RelativeLayout.LayoutParams.FILL_PARENT));
relativeLayout.setBackgroundColor(getResources().getColor(R.color.grayColor)); //set background color
LinearLayout.LayoutParams relativeParams = new LinearLayout.LayoutParams(
new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
relativeParams.setMargins(20, 20, 20, 0);
relativeLayout.setLayoutParams(relativeParams); //set declared params about layout to the relativeLayout
relativeLayout.requestLayout();
//IMAGE VIEW
ImageView selectedPhoto = new ImageView(this); //create a new imageView
//imageView code here
//TEXT VIEWS
TextView numberCopies = new TextView(this); //create new TextView
numberCopies.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT));
numberCopies.setGravity(Gravity.CENTER); //set position to the center in confront to the parent
RelativeLayout.LayoutParams layoutParamsNumberCopies = (RelativeLayout.LayoutParams) numberCopies.getLayoutParams();
layoutParamsNumberCopies.addRule(RelativeLayout.CENTER_HORIZONTAL); //add a rule to the layout params. We put his position at the horizontal center of the relative layout
numberCopies.setLayoutParams(layoutParamsNumberCopies); //set the layout rules to the textView
TextView priceCopies = new TextView(this);
priceCopies.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT));
priceCopies.setGravity(Gravity.CENTER);
numberCopies.setPadding(25, 25, 25, 25);
priceCopies.setTextColor(getResources().getColor(R.color.redColor));
RelativeLayout.LayoutParams layoutParamsPriceCopies = (RelativeLayout.LayoutParams) priceCopies.getLayoutParams();
layoutParamsPriceCopies.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
layoutParamsPriceCopies.addRule(RelativeLayout.CENTER_VERTICAL);
priceCopies.setLayoutParams(layoutParamsPriceCopies);
relativeLayout.addView(selectedPhoto);
relativeLayout.addView(numberCopies);
relativeLayout.addView(priceCopies);
linearLayout.addView(relativeLayout);
}
//RELATIVE LAYOUT
RelativeLayout relativeLayoutOpenButton = new RelativeLayout(this); //create a new relative layout for add the main buttons
relativeLayoutOpenButton.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, //add the params for the width and height
RelativeLayout.LayoutParams.WRAP_CONTENT));
relativeLayoutOpenButton.setBackgroundColor(getResources().getColor(R.color.blackColor)); //set the black background
relativeLayoutOpenButton.setPadding(10, 10, 10, 10); //set the padding
LinearLayout.LayoutParams relativeParamsOpenButton = new LinearLayout.LayoutParams(
new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
relativeParamsOpenButton.setMargins(0, 20, 0, 0); //put a top margin for separate the black bar from the last image line
relativeParamsOpenButton.gravity = Gravity.BOTTOM; //set the gravity to the bottom
relativeLayoutOpenButton.setLayoutParams(relativeParamsOpenButton);
relativeLayoutOpenButton.requestLayout();
Button confirmButton = new Button(this); //create a new button
//code button here
relativeLayoutOpenButton.addView(confirmButton); //add the button to the view
scrollView.addView(linearLayout);
setContentView(scrollView);
}
感謝
對不起,但我沒有正確理解。你能解釋得更好嗎? – Hieicker
你應該在你的主佈局中有一個RelativeLayout,然後在其中放置你想要的滾動視圖和按鈕。你應該將按鈕放置在滾動視圖的外部以及它的相對佈局和按鈕內部 – zohreh
我編輯我的答案。我希望它幫你 – zohreh