Android PopupWindow(弹出窗体)

PopupWindow

    • PopupWindow(弹出窗体)
    • PupopWindow的方法

PopupWindow(弹出窗体)

PupopWindow的方法

setContentView()_设置自定义布局
setwidth()_设置宽度
setHeight()_设置高度
showAsDropDown()_设置出现的位置,你自己自定的控件
showAtLocation()_设置出现的位置,相对父容器

代码

showAsDropDown设置的位置
Android PopupWindow(弹出窗体)_第1张图片
Activity

// An highlighted block
public class MainActivity extends AppCompatActivity {
    TextView textView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView=findViewById(R.id.main_text);

        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                 showPopupWindow();
            }
        });
    }

弹出框代码

// An highlighted block
public void showPopupWindow(){
        PopupWindow popupWindow=new PopupWindow(this);

        View view=View.inflate(MainActivity.this,R.layout.popupview,null);
        popupWindow.setContentView(view);

        popupWindow.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        popupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        popupWindow.setOutsideTouchable(true);
        popupWindow.showAsDropDown(textView,100,100);
        WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
        layoutParams.alpha=0.5f;
        getWindow().setAttributes(layoutParams);

        popupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
            @Override
            public void onDismiss() {
                WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
                layoutParams.alpha=1.0f;
                getWindow().setAttributes(layoutParams);
            }
        });
    }

showAtLocation()
Android PopupWindow(弹出窗体)_第2张图片

// An highlighted block
public void showPopupWindow(){
        PopupWindow popupWindow=new PopupWindow(this);

        View view=View.inflate(MainActivity.this,R.layout.popupview,null);
        popupWindow.setContentView(view);

        popupWindow.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        popupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        popupWindow.setOutsideTouchable(true);
        View parent=View.inflate(MainActivity.this,R.layout.activity_main,null);
        popupWindow.showAtLocation(parent, Gravity.BOTTOM,0,0);

        WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
        layoutParams.alpha=0.5f;
        getWindow().setAttributes(layoutParams);

        popupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
            @Override
            public void onDismiss() {
                WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
                layoutParams.alpha=1.0f;
                getWindow().setAttributes(layoutParams);
            }
        });
    }

自定义弹出框
在这里插入图片描述

public class MainActivity extends AppCompatActivity {

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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu,menu);
        MenuItem item = menu.findItem(R.id.item3);
        MenuItem item1 = menu.findItem(R.id.item4);
        item.setActionView(R.layout.customview);
        item1.setActionView(R.layout.customview);

        View viewById = item.getActionView().findViewById(R.id.custom_img);
        View viewById1 = item.getActionView().findViewById(R.id.custom_text);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        return super.onOptionsItemSelected(item);
    }
}

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