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<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.liang.at.pa"> <Button android:id="@+id/showProgress" android:text="click" android:layout_width="match_parent" android:layout_height="wrap_content" /> </RelativeLayout>
package com.example.liang.at; import android.app.ProgressDialog; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class pa extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_pa); Button bt =(Button) findViewById(R.id.showProgress); bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ProgressDialog progressDialog = new ProgressDialog(v.getContext()); progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); progressDialog.setIcon(R.drawable.loading); progressDialog.setMessage("Loading..."); progressDialog.setCancelable(false); progressDialog.show(); } }); } }
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